DRILL, TAP SIZE CHART ) DECIMAL EQUIVALENTS TAP DRILL SIZES DRILL DRILL SIZE DECIMAL SIZE DECIMAL 1/64 | .0156 80 .0135 79 “0145 78 “0160 71 “0180 76 “0200 75 “0210 74 “0225 73 “0240 72 0250 71 0260 70 “0280 69 0292 68 “0310 1/32 | .0312 67 .0320 66 “0330 65 0350 64 “0360 63 “0370 6 “038 61 “0390 TAPER PIPE 60 “040 59 Brit: DRILL 58 0420 57 “0430 56 0465 3/64 | .0469 55 .0520 54 “0550 53 “0595 /16 | .0625 52 .0635 51 0670 50 “0700 STRAIGHT PIPE 49 “0730 48 . 0760 5/64 | .0781 47 .0785 46 “0810 45 “0820 7/16-14 44 0860 43 “0890 7/16-20 42 “0935 1/2-13 3/32 | .0937 41 .0960 40 “0980 39 “0995 38 “1015 37 “1040 36 “1065 SHEET METAL SCREW SIZES ig ; #8 #6 #7 . DIAMETER #4 @ 2 $s F Peas DRILL SIZE 1/16 3/32 17/64 1/8 9/64 11/64 13/64 15/64 5/16