Use to provide the correct size drill bit, or to size fastener to determine what bit should to use.
Heavy duty gauge steel.
Measures drill bits from 1/16* to 1/2\

Technical Details

Size (LWH): 5.7 inches, 4.7 inches, 1.2 inches
Product Details
Product Dimensions: 5.7 x 4.7 x 1.2 inches
Shipping Weight: 0.2 pounds (View shipping rates and policies)
ASIN : B004ROIU2A