Techniks CAT40SLN3/8 End Mill Holder CAT40 3/8 Bore

Product Description

The TECHNIKS CAT40SLN3/8 is a CAT40 taper shank end mill holder designed for use in CNC machining centers that accept the CAT40 tooling standard. It accepts a 3/8 inch bore and delivers a 3 inch projection from the spindle face, positioning the cutting tool at a consistent and repeatable standout. The nose diameter measures 7/8 inch. With an overall length of 5.687 inches and a weight of 2.6 pounds, this holder is built for rigid, accurate tool clamping in production milling environments. Licensed machinists and toolroom technicians are the primary installers.

This end mill holder is suited for vertical and horizontal CNC machining centers running CAT40 spindles. The 3 inch projection makes it appropriate for applications where clearance is needed between the spindle and the workpiece or fixture. It accepts end mills and shank-style cutting tools with a 3/8 inch shank diameter. No through-coolant capability is present, so coolant delivery must be handled externally or through an alternative method. Typical applications include general-purpose profiling, slotting, and peripheral milling in job shop and production environments.

Key Features

• CAT40 taper shank for compatibility with CAT40 spindle tooling systems
• 3/8 inch bore diameter for standard shank end mills and cutting tools
• 3 inch projection provides standout clearance from spindle face
• 7/8 inch nose diameter for secure, rigid tool clamping
• Overall length of 5.687 inches for predictable tool offset entry
• No through-coolant - suitable for external or flood coolant setups

Compatibility

Designed as an OEM-style replacement and standard tooling holder for CNC machining centers equipped with CAT40 spindle interfaces.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machining center spindle before inserting or removing any toolholder. Use a calibrated torque wrench and the appropriate pull stud for your machine when securing the holder in the spindle. Inspect the taper shank and spindle bore for nicks, chips, or contamination before seating the holder to ensure full contact and runout accuracy.