SPI Reversible Tapping Heads

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SPI

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



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