Gauge blocks or gage blocks have a precise gage-maker tolerance and you can use gauge blocks for calibrating and checking various measuring instruments. Gauge blocks can withstand abrasions and corrosion. They come in various grades and tolerances to match the end use. There are master gauge blocks, which you can use in applications that need very precise and accurate measurements.

There are different types of gauge blocks, such as rectangular gage blocks, square gage blocks, angle blocks and spacer blocks. Each of these gauge blocks can measure in inches and metric sizes.

Some important parameters you must consider before you select gauge blocks are:

1. The gauge blocks end use
2. The tolerance or the accuracy in reading required
3. The conditions or environment
4. The type of measurement technology and the range of measurement required

Action Steps
The best contacts and resources to help you get it done

Buy gauge blocks from gage block manufacturers

You can buy different types of gauge blocks and gauge block sets from reputable gage block manufacturers.

I recommend: Pratt & Whitney Measurement Systems, Inc. is the reputable manufacturer of precision gauge blocks under the brands Labmicrometer and Laseruler. Edmunds Gages is another gage block manufacturer that sells gage block comparators. You can also buy different types of gage blocks and gage block sets from Nemic Industrial Supply which manufactures the Nemic Value brand of shop grade rectangular gage block sets, angle block sets and spacer block sets.

Buy gauge block from reputable gage block distributors

You can buy different types of gauge block sets and gauge blocks from gage block distributors of reputed companies.

I recommend: Automation and Metrology, Inc. is a reputable gage block distributor of the Mitutoyo brand of gage blocks and also sells gage block sets in metric and inch measurements. Airmatic Inc. is a distributor of gauge block sets and gauge blocks of different materials offered by Brown & Sharpe, Fowler, Mitutoyo and Starrett Tool. Fepco, Inc. is another gage block distributor who also provides gage calibration and repair services. E.J. Cady & Company is another supplier of certified steel gauge blocks of Mitutoyo.

Buy gauge blocks from reputable gage block retailers

Once you understand your requirements, review different gage blocks available with different suppliers of gauge block. Evaluate the gage block costs and the materials offered by different gage block suppliers and select the one that is suitable for your particular application.

I recommend: Industrial Boys is a reputable supplier of all industrial gage blocks that offers a range of gage blocks from Meda Superior Import, Mitutoyo and Starrett brand. Cost-Rite Tool & Supply is an industrial retailer that supplies gauge block sets and accessories.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  You must handle the gauge blocks very carefully as even a slight mishandling may result in inaccurate readings.
• •  Do not drop the gauge block or damage the edges of the block.
• •  Wipe the blocks with cotton and not with any greased or oiled cloth.
• •  Be up to date with the changing standards and get your gauge block set calibrated accordingly, to get accurate readings.