Drill Gauge 1-60

A precision reference tool built for the professional bench, this drill gauge displays USA drill sizes 1 through 60 with decimal equivalents in thousandths of inches. It also serves as a machine screw tap gauge, showing American size tap information alongside each drill hole — making it an indispensable dual-purpose reference for jewelers, metalsmiths, and machinists who work with threaded fasteners and precision drilling.

Constructed from heat-treated heavy gauge steel, the gauge is machined and ground to close tolerances for reliable, repeatable sizing. Hole sizes and decimal equivalents are permanently marked on the face, ensuring the reference information remains legible throughout years of shop use.

Features

• Displays USA drill sizes 1 through 60
• Decimal equivalents shown in thousandths of inches for each drill size
• Includes American size tap information — functions as a machine screw tap gauge
• Made from heat-treated heavy gauge steel
• Machined and ground to close tolerances
• Hole sizes and decimal equivalents permanently marked on face

Specifications