CAT40 Floating Tap Tool Holder Tapping Chuck

  • CAT40 Floating Tap Tool Holder Tapping Chuck
  • Works on all CAT 40 machines
  • For  ER40 ER32 ER25 ER20 and ER16
  • Threaded for stop screw ( included)
  • All critical surfaces precision ground
  • Made from alloy steel hardened to 54 – 56rc
  • Balanced to G2.5 at 25,000 RPMs
  • Gage length is 4 inches
  • Collet nut is included
  • Rear thread for pull stud is 5/8-11
  • Color: oxide and anodizing
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CAT40 Floating Tap Tool Holder Tapping Chuck 

The IGSTOOL Face Mill Tool holder is balanced to G2.5 25,000 RPM on Germany HAIMER Tool Dynamic Balancing System,
Each Tool Holder with QC report card. 100% guarantee of each tool holders  in the high-performance
Balanced tool holder minimizes the centrifugal forces which minimize the stress on spindle bearing,
minimize vibration and maximize the cutting tool’s life cycle and greatly improve surface finish


We accept Custom OEM Order 


        CAT40 Floating Tap Tool Holder Tapping Chuck

CAT40 Product NO. ER40 eR32 ER20 and ER16
Insulation material Hardened Alloy Steel
Hardness HRC 55
Run Out (TIR) <0.005″ or 0.05mm
Color Oxide and anodizing
 Standard Spindle  CAT40 Taper
Compression and Extension 10mm
Manufacture IGSTOOL



                                                                              Application Guide CAT Spidle Size



What is a Floating tapping tool holder


The floating tapping tool holder is a device with a spring inside, which is used for flexible tapping, also called floating tapping.

It can be used on automatic working machine tools, multi-axis tapping machines, and CNC machining centers without synchronous tapping.

When tapping with a lathe or a tapping machine, whenever the depth has reached the set value, the tap is broken due to inertia or due to machine control tolerances.

This phenomenon is particularly prominent when tapping the blind hole thread. With the telescopic compensation tapping tool holder, the flexibility of the tool holder can be used to protect the tap and prevent the tap from breaking when the thread is tapped to the end of the length of the main shaft drop is too large.

When the thread is reversed after tapping, in order to prevent the thread from being damaged when the spindle is reversed, the retractable tapping tool holder also provides compensation in the stretching direction and also relieves the force on the tap when the spindle is first reversed, reducing the tap. Damage to extend the life of the tap.

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