Black Guard Gages,

Only from Vermont Gage

Black oxide treatment prevents corrosion

And shows gage wear… saving money and

time. Make quick and accurate measurements

with Black GuardPin Gages. Measure hole

sizes. Calculate distances between holes.

Gage slot widths. Check locations. Use for

Go / No-Go gaging. Size in micrometers and

Snap gages. These gages are a must for anyone

Making frequent and varied measurements.

Black Guard… only from Vermont Gage.








Black Guard

* PREVENTS RUST & CORROSION *

* VISIBLE WEAR INDICATION *

* BRIGHT CLEAR MARKING *

* LONGER GAGE LIFE *

Black Guard black oxide treatment typically penetrates .00004" to .00006" deep, which will visually reveal wear patterns allowing the inspector to calibrate or replace gage pins more effectively. Black Guard treatment will help prevent rust and corrosion which will extend the useful life of the gage.


Class ZZ ( .0002" or .005 mm tolerance). * Go (Plus) or NoGo (Minus) * NIST traceable * .0005", or .02mm sizes * .001" or .02mm set increments * 52100 tool steel; 60/62 Rc * 2" long * 10 microinch finish or better * Within .0001" round * Marked with size & direction of tolerance on gages over .060" * Certificate of Accuracy included * Registered ISO 9001:2000