Product Description
General Sheet Metal Gauge 21
The #21 Sheet Metal Gauge is ideal for gaging uncoated sheet metal, plate iron and steel.
Made of satin finished, heavy gage hardened and tempered steel
Decimal equivalents of sizes are stamped on back
Range: American Standard wire gages 0 to 36
Dimensions
3-1/4 in. diameter x 3/32 in. thick