Profile: Blanchette Tool & Gage Mfg. Corp. specializes in air gage tooling and dimensional instruments. Our sheffield dimensional instrument product includes visual gage comparators, vertical comparators, BTG-1 digital amplifiers, feathertouch comparative height gage and dualjet gage block comparators. Our blanchette air gage tooling includes air spindles & master rings, taper gages and rifle barrel air spindles. We offer services such as gage block calibration, master & standards calibration and tools, gages & instrument calibration.