STM #1-60 Drill/Machine Screw Tap Gauge, 606314 Tells at a glance the correct size tap drill for machine screw tap in "NF" National Fine or "NC" National Coarse thread series Shows the correct body size drill to use, 60 sizes shown with...
STM 1/16"-1/2" Drill Gauge, 606316 Minimum Hole Size (Inch): 1/16 Maximum Hole Size (Inch): 1/2 Number of Holes: 29 Gauge has 29 measuring holes for determining twist drill sizes from 1/16" to 1/2" in 1/64" increments Shows drill sizes...