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- Deburrs the top of the tapped hole while the tap is being withdrawn from the workpiece.
- No reversal cut in the chamfer due to tool cutting only in the reverse.
- Creates a chamfer for easy screw insertion; leaves no burr to clog the tapped hole.
- Used on N/C machining centers and transfer machines, saves a complete station and a cycle.
- Absence of burr eliminates rocking between mating surfaces.
- No additional power required.
- Easy to install, simply slops over your tap.
1 |
2 |
3 |
4 |
| Entering drilled hole burr-bit does not operate normally. |
Threading finished spring exerts cutting pressure on butt-bit. |
Tap withdrawing burr bit now deburrs. |
Leaving clean chamfer. |
|
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| TAP SIZE |
| Metric |
Inch |
__A__ |
_fB_ |
f C (For hand taps) |
f C (For short & long machine taps) |
| M4 |
5/32" |
36 |
10.0 |
f 4.0 |
f 3.15 |
| M5 |
3/16" |
36 |
12.7 |
f 5.0 |
f 4.0 |
| M6 |
1/4-" |
36 |
12.7 |
f 6.3 |
f 4.5 |
| M7 |
7/32-" |
40 |
14.0 |
f 7.0 |
|
| M8 |
5/16-" |
40 |
14.0 |
f 8.0 |
f 6.3 |
| M10 |
1/8" NPS 3/8",7/16" |
48 |
20.0 |
f 10.0 |
f 8.0 |
| M12 |
1/2" |
48 |
24.0 |
f 9.0 |
f 9.0 |
| M14 |
1/4" NPS,9/16 |
50 |
24.0 |
f 11.2 |
f 11.2 |
| M16 |
5/8 |
62 |
32.0 |
f 12.5 |
f 12.5 |
| M18 |
|
62 |
32.0 |
f 14.0 |
f 14.0 |
| M20 |
1/2" NPS 3/4 |
62 |
32.0 |
f 14.0 |
f 14.0 |
Note: For use of burr bit tapping depth in the component should be less than the flute length of tap. |
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