Embed Size (px)
DESCRIPTION
Taps and drills
Citation preview
Tap Drill ChartTo give 75% Thread Depth
Tap Size BSW BSF UNC UNF BSP ANP BA ISO Metric
TPI Drill size TPI Drill size TPI Drill size TPI Drill size TPI Drill size TPI Drill size Size Drill size Tap Size mm Pitch Drill size
1/16 60 3/64 0 7 2 0:40 52 or 1.6
1/8 40 3/32 28 11/32 27 21/64 1 16 2 0:45 53 or 1.5
5/32 32 1/8 3 0:50 39 or 2.5
3/16 24 9/64 32 5/32 24 9/64 32 5/32 2 5/32 3 0:60 35 or 2.8
7/32 24 11/64 28 11/64 24 11/64 32 3/16 3 29 3.5 0:60 32 or 2.95
1/4 20 13/64 26 7/32 20 13/64 28 7/32 19 15/32 18 27/64 4 32 4 0:70 29 or 3.5
5/16 18 17/64 22 17/64 18 1/4 24 17/64 5 37 4 0:75 28 or 3.6
3/8 16 5/16 20 21/64 16 5/16 24 21/64 19 39/64 18 9/16 4.5 0:75 25 or 3.8
7/16 14 3/8 18 25/64 14 3/8 20 25/64 6 43 5 0:80 19 or 4.2
1/2 12 27/64 16 7/16 13 27/64 20 29/64 14 3/4 14 11/16 5 0:90 20 or 4.1
9/16 12 31/64 16 1/2 12 31/64 18 33/64 7 46 6 1:00 8 or 5.1
5/8 11 17/32 14 9/16 11 17/32 18 37/64 14 53/64 7 1:00 3 or 5.4
11/16 11 19/32 14 39/64 11 19/32 16 5/8 8 50 8 1:25 H or 6.8
3/4 10 21/32 12 43/64 10 21/32 16 11/16 14 31/32 14 57/64 9 1:25 N or 7.6
7/8 9 49/64 11 25/32 9 49/64 14 13/16 14 1 1/8 9 53 10 1:50 R or 8.6
1 8 7/8 10 29/32 8 7/8 12 29/32 11 1 7/32 11 1/2 1 1/8 10 54 11 1:50 3/8
1 1/8 7 63/64 9 1 1/64 7 63/64 12 1 3/64 12 1:75 13/32
1 1/4 7 1 7/64 9 1 9/64 7 1 7/64 12 1 11/64 11 1 9/16 11 1/2 1 15/32 11 3/64 14 2:00 15/32
1 3/8 6 1 7/32 8 1 1/4 6 1 13/64 12 1 19/64 16 2:00 9/16
1 1/2 6 1 11/32 8 1 3/8 6 1 11/32 12 1 27/64 11 1 51/64 11 1/2 1 23/32 12 59 18 2:50 39/64
1 5/8 5 1 7/16 8 1 1/2 20 2:50 11/16
1 3/4 5 1 9/16 7 1 39/64 5 1 9/16 11 2 1/32 22 2:50 49/64
2 4.5 1 25/32 7 1 55/64 4.5 1 25/32 11 2 17/64 11 1/2 2 3/16 24 3:00 53/64
