... in decimal inches. Standard metric drill sizes. Standard metric drill sizes used
for metric taps of the size indicated in the tap size column.
Machine Screw Size, Threads Per Inch, Minor Dia, Tap Drills, Clearance Hole
Drills. Alum, Brass, & Plasitcs. 75% Thread. Stainless Steel, Steels & Iron.
Tap Drill. Clearance Drill. Metric Tap &. Clearance Drill. Sizes. 75% Thread for.
Aluminum, Brass,. & Plastics. 50% Thread for. Steel, Stainless,. & Iron. Close Fit.
Tap, Fractional Drill Bit, Number Drill Bit, Letter Drill Bit. 0-80, 3/64, -, -. 1-64, -, 53,
-. 2-56, -, 50, -. 3-48, -, 47, -. 4-40, 3/32, 43, -. 5-40, -, 38, -. 6-32, 7/64, 35, -.
Tap Drill. Theoretical %. Size. Diameter. Inch (TPI). Range. Drill. Decimal ... This
chart displays a variety of UN Thread sizes, their likely Tap Drills and the ...
Drill sizes for inch and metric taps, from Victor Machinery.
engineering.purdue.edu/ME463/Course Documents/Design Resources/starrett-inch-metric-tap-drill.pdf
Drill Size. Decimal. eQUiValent tap Size. 80 .0135. 1. 79 .0145. 64 .0156. 78 .
0160. 77 .0180. 76 .0200. 75 .0210. 74 .0225. 73 .0240. 72 .0250. 71 .0260.
Tap size. NF/NC UNF/UNC. Threads per inch. Basic major dia (inches) ... minor
dia of ext. threads (inches), Basic minor dia of int. threads (inches). Drill size.
There are six categories of standard taps. We have broken down the drill size
recommendations into those six categories which appear below ...
Tap size chart. Filter by fractional, wire gauge, letter, metric, coarse and fine. View
tap drill sizes.