Gorilla Bolt Sizer & Thread Pitch Gauge: Inch

Being 99% Stainless Steel it's not only rustproof, but virtually indestructible. Valuable to both the novice and professional, the Gorilla Tool fits in the palm of your hand. Only 3 1/2" in length, 1 1/2" wide and 1/2" thick, its slim profile will comfortably slip into your shirt or pants pocket and the pre-drilled 3/16" hole will allow you to attach the Gorilla Tool to your tool belt.