Techniks 05542 Rigid Tap Collet ER25 8 Mm

Product Description

The TECHNIKS 05542 is a rigid tap collet designed for ER25 collet chucks used in CNC machining and manual tapping operations. It holds hand taps securely in a fixed, non-floating configuration, transmitting direct torque from the spindle to the tap without axial compensation. The collet accepts an 8 mm shank diameter with a 6.2 mm square drive size, making it compatible with M8, M10, and M11 hand taps. Weighing 0.5 pounds, it is built for precision tapping where machine lead and pitch are controlled externally. Machinists and CNC setup technicians install this collet in standard ER25 toolholders on machining centers and drill-tap machines.

This rigid tap collet is suited for production and job-shop environments running hand taps in ER25 toolholding systems. It is appropriate for ferrous and non-ferrous materials where rigid tapping cycles are programmed on the machine controller. The collet does not include through-coolant capability and is not a tension-compression design, so it is intended for machines with synchronized spindle-to-feed tapping control. Typical applications include threading operations on vertical machining centers, drill-tap centers, and knee mills equipped with ER25 chucks.

Key Features

• ER25 collet series for use in standard ER25 toolholders and chucks
• 8 mm collet bore diameter accepts M8, M10, and M11 hand tap shanks
• 6.2 mm square drive size engages the tap's square shank for positive torque transfer
• Rigid (non-floating) design for use with synchronized rigid tapping cycles
• No through-coolant passages, simplifying setup in standard toolholding configurations
• Lightweight at 0.5 pounds, minimizing added mass on the spindle

Compatibility

Designed for use with ER25 collet chucks and toolholders. Compatible with M8, M10, and M11 hand taps with an 8 mm shank diameter and 6.2 mm square drive.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down or place the machine in an e-stop state before changing tooling. Seat the collet fully into the ER25 nut before threading it onto the toolholder body, and torque the ER25 nut to the toolholder manufacturer's specification using the appropriate spanner wrenches. Confirm rigid tapping is enabled on the machine controller before running a tapping cycle with this collet, as the rigid design does not compensate for pitch error.