SPI Reversible Tapping Heads
- Chatter free clutch has positive engagement which allows for a smoother, more accurate tapping operation.
- Unique double spring mechanism provides automatic feed and cushion drive.
- Preset torque control permits easy operation of tap brake torque control.
- Guaranteed depth control to ± 0.004".
- Radial float is self centering to compensate for hole center misalignment to 0.005".
- Two rubber flex collets included with each head.
Specifications:
| Part Number | 71-653-0 | 71-654-8 | 71-655-5 |
| Mount | J6 | J6 | 20M x 2.5 |
| Tapping Capacity in Steel | No. 0 - 1/4", M2 - M7 | No. 8 - 1/2", M3 - M12 | 5/16 - 3/4", M8-M20, 1/8, 1/4 NPT |
| Max. Suggested RPM | 1500 | 1,000 | 600 |
| Gear Ratio | 1:1.6 | 1:1 .75 | 1:1.7 |
| Compress | 0.197" | 0.197" | 0.236" |
| Expansion | 0.140" | 0.160" | 0.240" |
| Collet Ref. # | R10,R11 | R20,R21 | R30,R31 |
Click for Rubber Collets
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