Techniks 29020 CAT40 Shrink-fit Tool Holder Adapter

Product Description

The TECHNIKS 29020 is a shrink-fit tool holder adapter with a CAT40 taper shank, designed for precision tooling applications on CNC machining centers. It accepts a 3/8-inch bore and delivers a 3-inch projection from the gauge line, with a nose diameter of 0.94 inches. Through-coolant capability allows cutting fluid to be delivered directly to the tool tip, improving chip evacuation and extending tool life in demanding milling and drilling operations. This adapter is installed by machinists and toolroom technicians working with shrink-fit induction heating equipment.

This adapter is suited for use on vertical and horizontal CNC machining centers equipped with CAT40 spindles. The 3-inch projection makes it appropriate for deep-reach applications where clearance between the spindle and workpiece or fixture is required. Through-coolant functionality is particularly useful in high-speed cutting of ferrous and non-ferrous materials where thermal management at the cutting edge is critical. Weighing 2.53 pounds, the adapter provides a solid, balanced platform for high-RPM operation.

Key Features

• CAT40 taper shank for compatibility with standard CAT40 spindle tooling systems
• 3/8-inch bore diameter for shrink-fit tool clamping
• 3-inch projection for extended reach into deep pockets or around fixtures
• 0.94-inch nose diameter for a secure shrink-fit grip zone
• Through-coolant design routes cutting fluid directly to the tool tip
• Overall length of 5.69 inches for consistent gauge-line referencing

Compatibility

Designed as an OEM-style shrink-fit adapter for CNC machining centers equipped with CAT40 spindle interfaces.

Installation Notes

Installation requires a shrink-fit induction heating tool setter to thermally expand the bore before inserting or removing the cutting tool. Always allow the adapter to cool completely before mounting it in the spindle. Ensure the spindle drawbar is fully engaged and torqued per the machine tool manufacturer specifications before operation. Inspect the bore for wear, contamination, or distortion before each use.