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large diameter discs will enter normally inaccessible places such as narrow grooves
prints and surface scratching
100" in one revolution
No of gage input 6
Hardness Tester (Micro Hardness Type)
Starrett 446AZ-3RL Digital Micrometer Depth Gage, 0-3" Range, .001" Graduation Chamfer Gage large diameter discs will enterItem Description Range: 0 3" Graduation: . 001" Accuracy: mic head . 0001", rods . 0002" Measuring rods: 3 Clear, easily read white numbers on black background reduce errors No glare black finish on the frame Measurement is read directly from the counter Ring type knurled lock nut for quick and sure locking Combination ratchet and speeder for uniform pressure and quicker adjustment Hardened, ground, and lapped base is 3" (75mm) long Measuring rods are