Woodstock D4141 Drill-Gauge Set, 3-Piece
Get organized with this 3 piece drill gauge set. These steel plates have clear markings, precision stamped gauge holes and lists numbered (1-60), lettered (A-Z) and fractional (1/16-Inch-1/2-Inch by 1/64-Inch) sized drill bits. Stop guessing and check those drill sizes before you drill that hole. Even includes a tap drill/clearance drill reference chart.