Kennametal 1013374 End Mill Holder CAT40 1/2 Inch

Product Description

The KENNAMETAL 1013374 is a CAT40 taper shank end mill holder designed for use in CNC machining centers where secure toolholding and coolant delivery are required. It features a 1/2 inch bore, a 1-1/4 inch nose diameter, and a 4.62 inch projection from the spindle face. The holder supports through-spindle coolant delivery, directing coolant directly to the cutting zone for improved chip evacuation and tool life. Balanced to 12000 RPM, it is suited for moderate to high-speed milling operations. Machinists and tool crib technicians in production and job shop environments are the primary installers of this holder.

This end mill holder is intended for use in CAT40-spindle vertical and horizontal machining centers running end mills with a 1/2 inch shank. The 4.62 inch projection makes it appropriate for applications requiring extended reach, such as deep-pocket milling or fixtures that require clearance from the spindle nose. The through-coolant design is particularly effective in ferrous and non-ferrous material removal where heat management at the cutting edge is a priority. The drawbar thread is 5/8-11, which is standard for CAT40 tooling systems.

Key Features

• CAT40 taper shank for compatibility with standard CAT40 machining center spindles
• 1/2 inch bore diameter for direct end mill shank clamping
• Through-spindle coolant delivery directs fluid to the cutting zone
• Balanced to 12000 RPM for stable high-speed operation
• 4.62 inch projection provides extended reach for deep-pocket and fixturing applications
• 5/8-11 drawbar thread matches the CAT40 standard

Compatibility

Designed as an OEM-style replacement or new-installation toolholder for CNC machining centers equipped with a CAT40 spindle taper and a 5/8-11 drawbar thread, accepting 1/2 inch shank end mills.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician following the machine tool manufacturer's toolholder seating and torque procedures. Ensure the spindle and toolholder taper are clean and free of chips or oil film before seating. Through-coolant passages should be verified clear before use. Confirm the drawbar is fully engaged before operating the spindle.