Page 252 - Republic Drill

Eight Pitch Taps

High Speed Steel – Ground Thread
List No. 779 – Eight Threads per Inch Please specify plug, bottoming,
List No. 779SET – (Plug, Bottoming, Taper) or taper chamfer when ordering. Price
THREADING 3/4 22.75 779SET 1-1/2 129.71 779SET 2-1/8 289.25 3-1/4 831.88
Price Each
Price Each
Price
Size
779
779
Size
779
779
Size
Size
68.25
389.13
2-1/4
1-9/16
3-3/8
7/8
895.79
139.15
87.84
29.28
417.45
309.38
398.75
57.48
1-1/16
929.50
3-1/2
1-5/8
142.95
428.85
172.44
2-3/8
1-1/8
1-3/4
2-5/8
3-3/4
1-3/16 60.10 180.30 1-11/16 163.35 490.05 2-1/2 398.75 3-5/8 1007.16
1084.88
501.88
181.35
226.50
544.05
75.50
1-1/4 75.50 226.50 1-13/16 199.65 598.95 2-3/4 617.38 3-7/8 1152.93
1-5/16 97.65 292.95 1-7/8 215.63 646.89 2-7/8 639.38 4 1221.00
1-3/8 97.65 292.95 1-15/16 229.90 689.70 3 719.13 4-3/4 4180.55
1-7/16 128.26 384.78 2 235.95 707.85 3-1/8 783.75 5 5205.09
Acme Tandem Style Taps
High Speed Steel – Class 2G
Tandem style tap eliminates the excessive cost of producing Acme threads. It produces threads
from a 10° to 30° included angle in a single pass without alead-screw. The last few threads on the
roughing section function as a guide for the short finishing section, which corrects the angles and
brings the threads to size.
List No. 787 – Right Hand
List No. 787L – Left Hand Price Each Price Each
Size Threads Thread Overall Right Hand Left Hand Size Threads Thread Overall Right Hand Left Hand
Per Inch
Length
Length
Per Inch
Length
Length
787
787
787L
787L
3/8 12 2-1/8 4-1/16 96.75 129.80 1 5 5-1/4 10-1/8 180.84 219.84
7/16 12 2-9/16 5 96.75 129.80 1-1/8 5 5-1/4 10-3/4 193.88 293.66
1/2 10 2-9/16 5 96.75 119.00 1-1/4 5 5-1/4 11-1/8 231.00 324.50
5/8 8 3-3/16 6-1/4 108.35 126.83 1-3/8 4 5-7/8 12-1/4 290.40 360.80
3/4 6 4-5/16 7-15/16 148.23 171.82 1-1/2 4 5-7/8 12-5/8 309.65 401.50
7/8 6 4-3/8 8-5/8 173.25 209.11 2 4 6-1/2 14-7/8 368.50 438.90
WHITWORTH Taps
High Speed Steel – Ground Thread
List No. 772W – 55° Thread Angle, British Standard, Plug, Chamfer.
Size Threads Overall Price Size Threads Overall Price Size Threads Overall Price
Per Inch Length mm Each Per Inch Length mm Each Per Inch Length mm Each
1/16 60 32 10.44 7/16 14 70 23.58 1-3/8 6 150 171.37
3/32 48 36 10.63 1/2 12 75 27.06 1-1/2 6 150 198.42
1/8 40 41 10.83 9/16 12 80 27.06 1-5/8 5 160 216.45
5/32 32 45 10.83 5/8 11 80 44.45 1-7/8 4-1/2 180 234.50
3/16 24 50 10.83 3/4 10 95 61.85 2 4-1/2 180 260.50
1/4 20 50 10.83 7/8 9 100 86.97 2-1/4 4 220 286.61
5/16 18 56 13.32 1 8 110 108.23 2-1/2 4 220 324.69
3/8 16 63 15.47 1-1/4 7 125 110.00 3 3-1/2 305 1234.80
WHITWORTH Nut Taps
High Speed Steel – Ground Thread
List No. 798W – 55° Thread Angle, British Standard
Primarily used for threading nuts. Shank of tap is smaller than I.D. of
nut allowing nuts to accumulate on the shank. Also used for long reach.
Threads Overall Length Price Threads Overall Length Price
Size Size
Per Inch mm Each Per Inch mm Each
1/8 40 70 43.27 1/2 12 180 82.46
3/16 24 90 47.40 9/16 12 200 99.75
1/4 20 110 52.00 5/8 11 220 107.20
5/16 18 125 57.40 3/4 10 250 148.45
3/8 16 140 65.97 1" 8 315 206.16
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