Thursday, September 21, 2017

japanese watch makers invite swiss chrono masters to learn their hand-making techniques

At Seiko they heard about a certain Swiss watchmaker, who was supposed to manufacture the most beautifully hand-finished movements. So they invited Mr. Philipp Dufour Dedication to get every detail right, and when you’re not sure that your hand-finishing is superb, you invite the master to teach you the skills. The Seiko watchmakers learned well from swiss watch makers.

Wednesday, September 20, 2017

with smaller old rackets nadal's weak technique would be exposed badly

cee gee
8시간 전
nadal is all steroids, moaning and physicality. with the smaller old rackets his weak technique would be exposed badly

Saturday, September 16, 2017

미국복싱은 흑인이 백인에게 인종차별한다

제 목
골로프킨 vs 카넬로 118-110 준 심판 ADELAIDE BYRD년 면상과 화려한 전적.

2017-09-17 13:29:59

대략 이런 면상이다.

이년이 얼마나 대단한 년이냐면, mma랑 복싱 두 분야에서 모두 최악의 심판으로 뽑히는 영광을 받은적이 있다.
흑인한테 후하게 주는 것부터 시작해서 편파에 존나 이상한 판정 한두개가 아닌데도 꾸준히 빅파이트에 불리는 이유는?

바로 좌측에 있는 인간, 베테랑 심판 로버트 버드가 남편이거든.

들여다보면 미국도 존나 썩어빠짐.
ㅋㅋㅋㅋ 진짜 씨발 극혐이네180.182.*.*
2017.09.17 13:30:27

여자년이 뭘 안다고 투기종목 심판질이야 하등한년180.182.*.*
2017.09.17 13:30:36

골롭이 메일보냈단다 재경기 감사합니다 아리가또121.175.*.*
2017.09.17 13:30:40

아 진짜 쓰레기124.53.*.*
2017.09.17 13:30:40

팝펀치♡갤로그로 이동합니다.
시발 판정보소 ㅋㅋ
2017.09.17 13:30:50

로버트 버드 메이웨더 vs 맥 심판 본 얘네118.219.*.*
2017.09.17 13:31:00

여자한테 저런일을 시킨다는게 말이 되냐 머가리가 아니라 감성으로 일하는년들인데211.108.*.*
2017.09.17 13:31:08

japanese car's handling is bad and understeer unlike german, italian and french cars

Pininfarinaa replied: "Nobody drives Lexus in my country too. Lexus is boring car."

7 hours ago (edited)
When I drive 07 lexus IS250, there is only understeer, understeer and understeer.
 Lexus made boring car. I will never dirve it.

Thursday, September 14, 2017

volkswagen achieve the most with the most little things

Why? lol. It's faster than all other Luxury sedans out there in this class. 335i is not eligible for comparison. This smokes 328, C Class, etc. Only one competing would be Q50 / IS350. it's amazing how with the most little things, audi achieve the most....fuel efficiency is great as well....

vernier caliper is made by Pierre Vernier

Tool School: How to Get the Most Precise Measurements
Master the vernier calipers and you can get you dimensions down to the thousandth of an inch
By Vin Marshall  October 19, 2009

Vin Marshall
At some point, every builder progresses beyond the "eyeball it" method of measurement, and as you build more complex projects, the tape measure is often not precise enough. If you're assembling an engine or machining parts, for instance, you often need to be accurate to within a few thousandths of an inch or parts fail and bad things happen. Unfortunately, most of the tools that can provide this kind of precision don't survive well in a gritty, messy, all-purpose shop. Except the vernier caliper, a device that looks intimidating (especially to those who spy it in your shirt pocket) until you crack its basic code. Here's how to be as exacting as an engineer in anything you build.

Vernier calipers embody a clever trick invented by Pierre Vernier. Lacking the precise and delicate mechanism of a dial caliper, the vernier caliper is a rugged and affordable way to make accurate measurements. But first, you have to understand how a vernier scale works. Looking at the calipers pictured, it should be obvious that there are two marked scales, one of which slides past the other. What is less obvious is that there is a precise relationship between the sizes of the divisions marked on each scale. This precise relationship is what allows a simple device, marked only to 1/20th or 1/40th of an inch and with no gears or screws, to measure accurately up to 1/1000th of an inch.
Why does this size relationship matter? The size of each division marked on the sliding scale is 1/1000 of an inch smaller than the divisions marked on the main scale. So, for example, when the calipers are closed and the 0 marks are aligned, the first mark on the sliding scale is 1/1000" short of the first mark on the main scale, the second mark on the sliding scale is 2/1000" short of the second mark on the main scale, and so forth. The difference in sizes of the divisions adds up. On the calipers pictured, the 50th mark on the sliding scale will be a full division short of the 50th mark on the main scale, lining up directly with the 49th mark. This difference in relative division sizes is the key point.
Here's an example: Imagine first that the calipers are closed and the 0 marks are aligned. Arbitrarily picking a number, lets consider the 14th mark on the sliding scale. Given what we know about the relative sizes of the divisions on the sliding scale and the main scale, we can reason that this mark is 14 * 1/1000" = 14/1000" short of the 14th mark on the main scale. Now let's imagine that we open the jaws of the calipers slightly and move the sliding scale such that its 14th mark lines up perfectly with the 14th mark on the main scale. The caliper jaws have just opened 14/1000 of an inch.
This fundamental concept is what is applied when a vernier caliper is used to measure an object. The main scale, which is marked in units that actually correspond to units in our system of measurement, is used to measure up to 1/20th or 1/40th of an inch, depending on the variety of vernier scale in question. The sliding scale then, which is marked in divisions 1/1000" smaller than those on the main scale, is used to calculate the remainder of the measurement, giving this tool it's 1/1000 of an inch accuracy. So you read the main scale first. Then, reading the sliding scale indicates how many thousandths of an inch larger the measurement is than the reading on the main scale. Adding these two sizes gives the measurement.

Vin Marshall
For the sake of completeness, it should be mentioned that there are two types of vernier scales commonly found in calipers, known as 25-division verniers and 50-division verniers. While the details differ, the fundamental concept remains the same. Each has divisions on the sliding scale that are 1/1000 of an inch smaller than the divisions on the main scale. In the case of the 25-division verniers, the main scale divisions are every 1/40th of an inch and the sliding scale has 25 divisions, each 1/25th smaller than the divisions on the main scale (1/40 * 1/25 = 1/1000). For the 50-division verniers, like those pictured here, the main scale divisions are 1/20th of an inch and the sliding scale has 50 divisions, each 1/50th smaller than the divisions on the main scale (1/20 * 1/50 = 1/1000). They are both used in the same way and give the same accuracy.

But enough math. Let's look at how these are used.

Vin Marshall
Though vernier calipers may seem confusing at first, they are actually dead simple. Adjust the sliding jaws of the caliper so they're snugly positioned against the part to be measured. First read the number of full divisions on the main scale. in the photo above, 1.25. Next, find the first marking on the sliding scale that lines up directly with a marking on the main scale. Take that number as thousandths of an inch (for example, 14 on the sliding scale would be 0.014") and add it to the number from the first step. In this example, the measurement is 1.39".
To learn more, a great reference is "The Starrett Book For Student Machinists".

sylvac(made in swiss) is the best digital caliper in the world

Fowler's Microcal—a revolutionary
external measuring instrument—
combines the features of inch and
metric digital micrometers, snap
gages and calipers all in a single,
simple to use tool.
Microcal, a high resolution .00005"/.001mm
electronic gage, retains high accuracy over
its 4" range. By use of constant measuring
pressure, the gage can obtain exceptional
repeatability even when used by many
different operators. A positive lock and snap
action function duplicates the features
found on most "snap" style gages. Carbide
measuring faces ensure long life and
Microcal also incorporates all of the benefits
and features of our new Sylvac measuring
system such as long battery life, increased
measuring speed, preset capabilities and
best of all… direct RS-232 output !
Order No. Description
54-120-000 0—4" (0-100mm) Microcal with standard anvils
54-120-002 0—4" (0-100mm) Microcal with blade anvils for groove measuring.
54-120-005 Microcal stand
54-120-010 "Photo shutter" type lifting device for Microcal
54-115-333 Simplex Computer Connection Kit. Includes 80" (2m) connecting
cable; 9 pin IBM AT RS-232 connector; GageWedge Software disk.
54-100-350 Replacement lithium battery (type #CR2032 or BR2032).
• 0—4" (0—100mm) external measuring
range. Resolution .00005"(.001mm).
• Repeatability .00008" (.002mm) ±2s.
• Measuring force 9—10.5 oz. (2.5—3N).
Weight .5 lb. (250g). Temperature range
5—40½C working; -20 to 60½C in storage
• Hardened stainless steel beam construc
tion. Completely reengineered Sylvac
measuring sensor. Non-contact linear
measuring system is insensitive to dust,
dirt, oils and electrical or magnetic
• Direct inch/metric switch. Hold feature
freezes display for later viewing. Zero/hold
key doubles as data send key when using
the output. Ideal for hard to reach places.
• Incremental floating zero. Two switchable
reference datums with independent preset
capabilities. Increased measuring, tracking
speed of approximately 1.5 meters/second
• New large, high contrast LCD display.
Height of digits .24". Display now indicates
in/mm, hold, and zero functions.
• Low drain, high efficiency lithium wafer
battery (environmentally safe for disposal)
offers 4500 hours of continuous on time.
Use on/off switch to extend life u

brown & sharpe is the best vernier caliper by far

10-21-2006, 02:23 PM #2
JFettig  JFettig is offline
Gold Member

Join Date
Jun 2003
United States
Brown and Sharpe is by far my favorite, I've used Mitutoyo, Starrett and the cheapos. B&S seems to be the smoothest one. The only thing that might be nice to have is that little wheel for fine movement, but it is easy and smooth enough that its really not needed.


swiss vernier caliper is the best in the world

01-31-2007, 01:46 PM #26 Doug  Doug is offline
Join Date
Dec 2002
Pacific NW
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I like my Starrett mikes.

When it comes to dial calipers the 6" B&S without the thumb wheel are the best IMO (hate those thumb wheel type).

Wednesday, September 13, 2017

best bulovas are made by swiss chrono masters

The Accutron brand is still made in Switzerland, so the best Bulovas aren't Japanese.
With its Grand Seiko line, which has a very high level of finish (damaskeening, angleage), I personally consider Seiko to be king of Japanese watches.

Bulova/Accutron are originally Swiss made. They only started using Japanese movement FS in their less expensive models.

Wrist Watch Industry Statistics most selling watch brand

Watch Industry StatisticsData
Number of watches sold annually worldwide1,200,000,000
Number of smartwatches sold in 201536,000,000
Number of smartwatches sold in 20146,800,000
Average price of a smartwatch sold in 2014$189
Number of Swiss Watches sold annually29,200,000
Number of watches produced by China annually663,000,000
Number of watches produced by Hong Kong annually354,000.000
Average cost of a Swiss watch$739
Average cost of a China watch$3
Switzerland watch market share in terms of value54 %
Watch Market Leaders by Sales RevenueAnnual Revenue
Swatch / Omega annual sales$8,880,000,000
Rolex annual sales$4,500,000,000
Largest Global Watch ManufacturersMarket Share
Swatch Group18.3 %
Richemont15.7 %
Rolex11.8 %
Fossil (USA)5.2 %
LVMH / Bulgari (France)4.7 %
Citizen (Japan)3.9 %
Seiko (Japan)3.4 %
Patek Philippe3 %
Casio (Japan)2.1 %
Audemars Piguet1.7 %
Others30.1 %
Watch Sales by TypeMarket Share
Mechanical Watch market share77 %
Electronic Watch market share23 %
Largest Buyers of Watches by Purchased ValuePercent
Hong Kong20.4 %
USA10.2 %
China7.7 %
France6.2 %
Germany5.6 %
Watch Sales by MaterialsPercent
Steel53 %
Other Materials26 %
Other Metals15 %
Gold-Steel4 %
Precious Metals

high end seiko is inferior to swiss watches

Seiko has an excellent reputation. It is one of the few true manufactures: i.e., for their higher-end pieces, they build everything in-house. When it comes to their higher-end models, it's hard to argue that they are not as good as their Swiss counterparts. However, unlike the prestige Swiss brands, Seiko is more widely known for their affordable watches, which some think "dilute" the brand.

How do Seiko watches compare to other watch brands?

The closest Swiss counterpart to Seiko is probably Swatch. What many people don't know is that Swatch is a massive conglomerate that owns a number of prestige brands, most notably Omega (as well as Breguet, Blancpain, Hamilton, Tissot, Longines, and many others). Unlike the Swatch brands, however, Seiko's entire lineup is called Seiko (except the ultra-exclusive Credor-line). So most people will mistake your $7,000 Grand Seiko Spring Drive for something you can pick up at the mall for $50. That's not a problem for the Japanese executive who doesn't want you to know how much he makes. But for most folks willing to spend $7K on a watch, it is a problem. But that GS Spring Drive is more innovative, rarer and will have gotten more hand time from an actual human watchmaker than any Rolex.

Seiko also makes the best quartz watches in the world. (They invented the quartz watch, by the way.) If you are willing to spend in the $2,000 range, you can pick up one of their 9F high accuracy quartz watches. They guarantee the watch will be accurate to within 5-10 seconds per year. (The average quartz watch is accurate to within 15 seconds per month.)

But even their most affordable line-up won't be made up of flimsy plastic things. For under $200 you can get yourself a very fine quartz watch that will be reliable for many years.

most reliable watch in the world

Mikaela Song, Highly appreciates traditional watchmaking history
Answered May 5, 2016
That is a vague question. Are you referring to reliability of quartz, mechanical or automatic movement?

When it comes to movement, quartz' timekeeping will always be reliable compared to mechanical or automatic.

If you're asking about which brands have the most reliable mechanical and automatic watches, I'll briefly explain for you. Based from my experience,  timepieces that uses ETA movements are more reliable compared to those that uses their own brand's in-house movement, with exception to Rolex, Jaeger LeCoultre, Omega and Patek Philippe.

Basically, ETA is Switzerland's largest movement manufacturer. To know more about ETA, read A Brief History Of ETA: THE Swiss Watch Movement Maker | aBlogtoWatch.

Most swiss watchmaking companies uses ETA movements, thus, providing a more accurate and reliable timekeeping. Based from observation of consumers, the following are some brands to have fairly proven their reliabilty in timekeeping using both ETA and in-house movements (in no particular order):

Tag Heuer
Jaeger Lecoultre
Audemars Piguet
Patek Philippe
IWC Shaffhausen
Vacheron Constantin
A. Lange & Söhne
I have a reason why I did not include Hublot, Panerai, Parmigiani Fleurier, Girard Perregaux, Rado and Baume Et Mercier. I personally do not trust their movements.
3.7k Views · 1 Upvote

Stefan Mladenov, former Sales Associate at Ben Bridge Jeweler
Answered Apr 11
Depends on your budget!

Under $1,000:

Bulova, Citizen, Seiko, Steinhart

Over $1,000:

Omega, Rolex, Panerai

I personally prefer Omega because they are very fairly priced and have fantastic quality control. They are workhorses and have amazing designs. Movements in them are proprietary and incredibly well-built.

Best of luck,


S Ra
Answered May 16
Out of automatic ones Seiko, Tudor, Omega, Rolex, Hamilton. Stay away from stuff that is not made in Switzerland and Japan.And what does not have its own in house movement.Panerai is one example of that.They have generic Belgian made movement but that does not justify 10 000 price tag.

Top 10 Best Selling Watch Brands In The World

As the world progresses, accessories are one item that have been a part of people’s lives for centuries. One of these accessories are watches which can be considered as essential pieces to many people’s lives in this precise-time based era. There are several watch companies which can range from a few dollars to thousands of dollars. Watches are an item which are worn by everyone: the average citizen, actors, and even Princes.

Table of Page Contents
Here is a list of the top ten best -selling watch brands in the world:
10. Bulova
9. Hamilton
8. Mont Blanc
7. Omega
6. Seiko
5. Tag Heuer
4. Citizen
3. IWC Schaffhausen
2. Patek Philippe
1. Rolex
Here is a list of the top ten best -selling watch brands in the world:

10. Bulova

bulova, Top 10 Best Selling Watch Brands In The World 2017
This Swiss company manufactures watches and clocks, and is owned by Citizen Watch Co. It was originally called the J. Bulova Company when it was started in 1875 by Joseph Bulova. The first plant of the company which was solely for the production of watches was launched in 1912. Brands that Bulova markets are Bulova, Caravelle New York, Wittnauer Swiss and Marine Star. Some of the key people like the current president of the company is Jeffrey Cohen and the chief operating officer is John Wille. Bulova’s annual revenue is about $164 million.

9. Hamilton

Belonging to the Swatch group, this watch company was started in 1892. The company began after the Keystone Standard Watch Company went into bankruptcy. This company’s name is related to Andrew Hamilton who was a Scottish born lawyer that founded the city of Lancaster. It manufactures and sells pocket watches and wristwatches. In the movie Interstellar, a limited edition watch was created that served as a plot point. It was never marketed to the public.

8. Mont Blanc

This international company is a producer of high-end writing instruments, watches, sunglasses, perfume, cufflinks, jewelry, and leather goods. Some of its sister company are Cartier, Can Cleef & Arpels, Chloe, and Baume et Mercier. All of the companies are a part of the Richemont Group. The headquarters of the company are in Hamburg, Germany and they are about 449 boutiques. Jerome Lambert is the chief executive officer of the company.

7. Omega

Omega SA manufactures and sells Swiss luxury watches, and it is owned by the Swatch group. It is the official watch for Britain’s Royal Flying Corps who chose it in 1917 for its combat units; the American army did as well in the year of 1918. The first watch on the moon belonged to this company as the brand is the choice of NASA. Some of the noteworthy people that have worn this brand of timepieces are James Bond, John F. Kennedy, Prince William, George Clooney, and Buzz Aldrin.

6. Seiko

The Seiko holding company produces and markets watches, clocks, electronic devices, semiconductors, and optical products. It is a Japan based company which was founded by Kintaro Hattori in 1881. The word ‘seiko’ means ‘exquisite’ or ‘success’. James Bond wore a Seiko watch in four of his movies and Sean Connery wore one in the film Never Say Never Again. The company has been the official timekeeper for many events including the 1964 Summer Olympics in Tokyo, Japan, the 1990 FIFA World Cup in Italy and the 2015 World Championships in Athletics in Bejing, China. Shinji Hattori is the chairman and chief executive officer of the company and its revnue is over 213.73 billion Japanese yen. This is one among the world’s a few best Selling Watch Brands by 2017.

5. Tag Heuer

Tag Heuer company is a producer and marketer of watches, fashion accessories, eyewear, and mobile phones. Edouard Heuer of Switzerland founded the company and the current headquarters are located in La Chaux-de-Fonds. It is owned by the conglomerate, LVMH, since 1999. In the year 2010, the company introduced the ‘Pendulum Concept’ which was the first magnetic oscillator without a hairspring capable of supplying restoring torque similar to that of hairspring. Current lines of the company are Forumla One, Aquaracer, Link, Carrera, Monaco, Connected, and Grand Carrera. It has been the official timekeeper of sports events such as the Summer Olympic Games in the 1920’s, the Skiing World Championships, and the Formula One World Championships.

4. Citizen

The Citizen Holdings Company is one of the largest manufacturers of watches. Some of its lines are labelled “Secret” and “Lighthouse”. It was founded in 1918 and the headquarters are located in Tokyo, Japan. Aside from watches, the company also produces calculators, small electronic organizers, handheld televisions, and computer printers. Some of its corporate divisions are Citizen Watch Co., Ltd., Japan CBM Corporation, Citizen Systems Japan Co., Ltd., Citizen Miyota Co., Ltd., Citizen Fine Tech Co., Ltd, Citizen Watch Company of America, and the Bulova Watch Company, New York. Its revenue is about 252.5 billion yen.

3. IWC Schaffhausen

The International Watch Co., is a high-end Swiss watch manufacturer which was founded by Florentine Ariosto Jones. One of the people who played an important role in the company’s success was Urs Haenggi. He stayed with this company for 52 years and was in charge of getting factory operations up and running smoothly as well as acquiring new buyers. Another role of his was to ward off the possibility of the outside interests who may acquire IWC. This company keeps detailed records of each watch that leaves the factory and details like the caliber, materials used, and cases have been entered. Customers can get the information about their watch if its more than ten years old for a fee.

2. Patek Philippe

This Swiss watch producer is located in Geneva and it was founded in the year 1851. Watches of this company have been worn by Pope Pius IX, Queen Victoria, Victor Emanuel III of Italy, and Christian IX of Demark. Queen Victoria had a key-wound watch which was created in a pendant style in 1851 at the Great Exhibition of London. This company’s watches were introduced to American markets and sold alongside the sister brand Universal Geneve. The company produces mostly automatic and manual wind mechanical movements, but has also produced and still produces quartz watches. The revenue of the company exceeds 765.6 million Euros.

1. Rolex

Rolex SA is a company founded in London by Hans WIlsdorf and Alfred Davis. It is ranked as 64th on Forbes list of the world’s most powerful global brands of 2017. This luxury company produces about 2,000 watches a day. A few of the noteworthy models of the company are Datejust, Daytona, Day-Date, GMT Master II, Milgauss, Oysterquartz, and Submariner. Hans Wilsdorf Foundation is the owner of the company and it is registered as a charity.

These are the bestselling Watch brands in the world at the 2017. These are excellent in build, design and precision. They are very much popular and produce some of the most expensive watches too.

swiss vanier caliper company sylvac

Swiss companies are often attributed with a high level of quality, expertise and attention to detail in their products. Sylvac is a company which is a part of that trend and has established it over the past 45 years in the field of high precision measurement instruments and tools. Their products offer an integrated mix of excellent mechanical precision and state of the art electronics.
Their digital instruments come equipped with their own data collection softwares which are also used in many other companies instruments. Sylvac leads the metrology industry due to its proficiency in innovation and despite being a reltively small scale company, it still has a global outreach through a wide network of distributors and partners.

정밀부품 기술은 독일이 1위이다 일본은 중상급

독일 기술수준은 세계에서 독보적인 수준인데 일본이 앞선다니...ㄷㄷㄷ
알렉산드리아  2014.01.22 10:5598.169.**.**
조회 60댓글 1
일본이 독일보다 기술력이 앞섰다는 어이 상실한 소릴  다듣네..미국 일본이 독일 다음에 2진이긴 하지만 기술 격차가 심하게 나는 정도인데...

기술중에 가장 중요한 핵심 기술이 금속 세공 기술인데 이건 아무도 독일 못따라가...제발 모르면서  황당한 소리좀 퍼뜨리지 말라는

특허수 가지고 기술력이 더 앞 섰다고 하는 건, 중국이 미국보다 공장수 더 많으닌깐 기술이 더 발달했다라는 황당한 소리나 마찮가지임

일본이 독일을 앞선다고?웃기고 있네.정밀부품 기술은 일본이 독일을 못 따라가.
2014.01.22 11:48

고도 정밀기계 기술력 세계1위는 독일이다 일본은 중상급

독일이 기술력 세계일위다
근데 솔직히 유럽에서 독일빼면 기술력으로 일본넘는 나라있냐?
ㅁ  2014.01.22 12:14175.118.**.**
조회 7댓글 0

PCB솔더링 리플로어같은 고도의 정밀기계들은

항상 독일이 1위 일본이 2위더라

한국도 정밀기계만들긴하는데 일본보다 기술력이 많이 떨어져서

현기차마냥 헐값으로 뿌린다더라

해외에서 적자본건 역시 국내 기업사장호구들한테 뜯고 ㅋㅋ

측정기구 버니어 캘리퍼스는 독일제가 정확하다

오래쓰던 버니어 캘리퍼스(노기스)가 갈수록 고장이 잦아 새로 하나 장만하였습니다^^
코일위드아이언즈의 오차줄이기 전쟁중에 큰 맘먹고 독일제 버니어캘리퍼스를 구입해봤는데 확실히 기존에 쓰던 것보다 오차도 적고 꽤 정확해서 놀랐답니다~
앞으로 새로운 노기스가 여러 작업들에 많은 도움이 됐으면 좋겠네요~
그리고, 정든 노기스는 버리기가 아까워 다른용도로 쓰려고 일단 잘 데리고 있으려고 합니다^^@

칼리퍼스(정밀 측정 도구)는 그리스가 발명하였다.


위키백과, 우리 모두의 백과사전.
캘리퍼스(callipers)는 컴퍼스와 매우 비슷한 도구로, 작은 치수를 잴 때 쓴다.


최초의 캘리퍼스는 이탈리아 해안 근처의 그리스 이솔라델질리오에서 발견되었다. 기원전 6세기로 거슬러 올라간다. 나무 조각에는 이미 고정/이동식으로 물리는 부분이 있었다.[1][2] 드물게 발견되기는 하지만, 캘리퍼스는 그리스와 로마 사람들에 의해 사용되고 있다.[2][3]
기원후 9세기로 거슬러 올라가면, 중국 신나라 시기에 청동으로 된 캘리퍼스가 분 측정을 위해 사용되었다. 이 기구에는 슬롯과 핀이 포함되어 있었으며 인치와 1/10 인치를 잴 수 있었다.[4][5]
1/1000 인치까지 읽을 수 있는 현대의 버니어 캘리퍼스는 미국의 조지프 R. 브라운이 1851년에 발명하였다. 이는 일반 기계 제작 기술자에게 알맞은 가격에 판매되는, 정확한 측정 기구로서 최초의 실용적인 도구였다.[4][6]


  • 내경캘리퍼스 : 다리가 바깥쪽으로 구부러진 캘리퍼스. 파이프의 안지름이나 물체 표면 사이의 거리를 잴 때 쓰임.
  • 외경캘리퍼스 : 다리가 안쪽으로 구부러진 캘리퍼스. 파이프의 바깥지름이나 두께를 잴 때 쓰임.
  • 양용캘리퍼스 : 외경캘리퍼스와 내경캘리퍼스가 결합된 것.
  • 디바이더
  • 슬라이드캘리퍼스 :