Comprehensive & Fast
Starrett-Webber gage block calibration is performed promptly – your gage blocks will be ready to be returned to you within a few days after we receive them.
The calibration process is as follows:
1. After receiving your gage blocks, we document their arrival, then clean each block to remove oil, grease and film. The case is also thoroughly cleaned.
2. Next, we lightly stone each block to remove small nicks and burrs. This does not guarantee that the blocks will wring if they are heavily nicked, scratched, or burred.
3. Your gage blocks are then individually compared with master blocks that are accurate to fractions of one millionth of an International Inch.
4. Starrett-Webber Grand Master Blocks are Starrett-Webber croblox® (solid chrome carbide). Our exclusive Grand Master Gage Blocks are calibrated directly by the U.S. National Institute of Standards and Technology (NIST).
5. Our automated system generates a Certificate of Calibration to ensure complete accuracy in recording gage block size. This certificate shows the deviation from the marked size of each block and marks those sizes which need replacing.
6. We will then provide a quotation for recommended replacements in the original material and croblox®, if applicable.
7. If replacements are not required, or if you have instructed us only to calibrate and return the set, the gage blocks are packed and returned to you with a Certificate of Calibration showing the “as found” readings.
8. If you authorize replacements, your Certificate of Calibration is marked to indicate which blocks were replaced and the date of replacement. At your request, we can issue an “as found” and an “as left” certificate for an additional fee.