Techniks 22915-4.72-RR End Mill Holder CAT40 3/8 Inch

Product Description

The TECHNIKS 22915-4.72-RR is a CAT40 taper shank end mill holder designed for use in CNC machining centers and milling operations. It accepts a 3/8 inch bore and delivers a 4.72 inch projection from the spindle face, placing the cutting tool at the correct working distance for a wide range of milling applications. The 1 inch nose diameter provides a rigid, low-runout interface between the spindle and the end mill. This holder is installed and serviced by CNC machinists and toolroom technicians working in production and job-shop environments.

This end mill holder is suited for vertical and horizontal machining centers equipped with CAT40 spindle interfaces. The 4.72 inch projection length makes it appropriate for operations that require additional reach, such as deep-cavity milling, workpiece fixturing clearance situations, or multi-step setups where tool length consistency is critical. It does not include through-coolant capability, so external or flood coolant delivery is required for heat-sensitive operations.

Key Features

• CAT40 taper shank for compatibility with standard CAT40 spindle interfaces
• 3/8 inch bore diameter accommodates standard end mill shanks
• 4.72 inch projection provides extended reach for deep-cavity and clearance milling
• 1 inch nose diameter for a rigid, stable tool interface
• No through-coolant - suited for external or flood coolant setups
• Overall length of 7.41 inches supports consistent tool-length offsets in CNC programs

Compatibility

Designed as an OEM-style end mill holder for machining centers equipped with CAT40 spindle interfaces accepting 3/8 inch shank tooling.

Installation Notes

Installation and tool changes on CAT40 holders should be performed by qualified CNC machinists or toolroom technicians using a proper CAT40 pull-stud and approved retention knob torque procedures per machine manufacturer specifications. Always power down the spindle and engage the machine safety lock before seating or removing the holder. Use a dedicated tool holder tightening fixture and appropriate end mill holder wrenches to secure the end mill set screw - do not use improvised tools that may damage the bore or set screw seat. Verify tool length offset in the CNC control after installation before running the first part.