Kennametal 1013425 CAT40 End Mill Holder 1 in Hole

Product Description

The KENNAMETAL 1013425 is a CAT40 taper shank end mill holder designed for milling applications requiring rigid tool retention and through-spindle coolant delivery. The holder accepts a 1-inch bore and features a 2-inch nose diameter with a 6-inch projection, giving it an overall length of 8.687 inches. A 5/8-11 drawbar thread secures the holder to the spindle. It is balanced to 12000 RPM, making it suitable for high-speed milling operations on CNC machining centers. Machinists and toolroom technicians install this holder in CAT40-spindle machines for face milling, end milling, and slotting work where coolant-through capability is required.

This end mill holder is used in production and job-shop environments running CAT40-equipped vertical and horizontal machining centers. The 6-inch projection accommodates deep-reach applications where standard-length holders cannot clear fixtures or part features. Through-spindle coolant is routed directly to the cutting zone, supporting chip evacuation and tool life in ferrous and non-ferrous machining. The 4.43-inch clamping depth provides secure grip on compatible end mill shanks. This holder is appropriate for both roughing and finishing operations where vibration control and coolant delivery are priorities.

Key Features

• CAT40 taper shank for direct spindle mounting on standard CNC machining centers
• 1-inch bore accommodates end mills with 1-inch straight shanks
• 6-inch projection enables deep-reach milling where clearance is limited
• Through-spindle coolant delivery routes coolant directly to the cutting edge
• Balanced to 12000 RPM for stable high-speed operation
• 4.43-inch clamping depth provides solid tool retention

Compatibility

Designed for use in CAT40-spindle CNC machining centers accepting a 5/8-11 drawbar thread. Compatible with end mills having a 1-inch straight shank.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Verify spindle is powered down and locked out before mounting or removing any toolholder. Use a calibrated torque wrench and the machine manufacturer-specified drawbar torque procedure when securing the holder. Inspect the taper bore and spindle taper for nicks, chips, or contamination before assembly, as surface defects will affect runout and balance.