Tap & Drill Bit Gauge, Material Steel, Finish Matte, Dimension Type Fractional Inch, For Use With For Fractional Inch Drill Bits, Maximum Size - Inch 0.234375 in, Maximum Size - Wire 3 AWG, Minimum Size - Inch 0.046875 in, Minimum Size - Wire 17 AWG, Number of Holes 60, Length 6 1/4 in, Range 3 AWG to 17 AWG, Thickness 5/64 in, Width 2 5/16 in