Kennametal 1013408 CAT50 End Mill Holder 3/16 Inch Through Coolant

Product Description

The KENNAMETAL 1013408 is a CAT50 taper shank end mill holder designed for secure tool retention in CNC machining centers. It accepts a 3/16 inch bore and delivers a 4.5 inch projection from gauge line to nose, giving machinists clearance for a range of milling operations. The nose diameter measures 11/16 inch. Through-coolant capability routes fluid directly through the spindle and holder body to the cutting zone, supporting chip evacuation and tool life in demanding applications. The holder is balanced to 12,000 RPM and carries a drawbar thread size of 1-8. Weighing approximately 7.5 pounds, it is built for production environments where rigidity and repeatability matter.

This holder is suited for use in vertical and horizontal CNC machining centers equipped with CAT50 spindle interfaces. It is intended for shops running production milling, slotting, and profiling operations where through-spindle coolant is available and high-speed performance is required. The 6.69 inch clamping depth provides firm engagement of the tool shank, reducing runout and improving surface finish. Toolroom technicians and CNC setup personnel are the typical end users.

Key Features

• CAT50 taper shank for positive engagement with standard CAT50 spindle interfaces
• 3/16 inch bore diameter for compatible end mill shanks
• 4.5 inch projection from gauge line for extended reach applications
• Through-coolant design routes fluid directly to the cutting zone via spindle coolant supply
• Balanced to 12,000 RPM for stable high-speed operation
• 6.69 inch clamping depth for secure, low-runout tool retention

Compatibility

Designed for use in CNC machining centers equipped with a CAT50 spindle interface and through-spindle coolant capability. Compatible with end mill shanks measuring 3/16 inch in diameter. Drawbar thread size is 1-8.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician with the spindle powered down and locked out per the machine tool manufacturer's lockout/tagout procedure. Inspect the taper bore and spindle socket for contamination or damage before seating the holder. Torque the drawbar to the machine tool manufacturer's specification using the correct drawbar wrench. Confirm through-coolant connections are properly engaged before resuming spindle operation.