Kennametal 1015226 End Mill Holder HSK63A 1 in Bore

Product Description

The KENNAMETAL 1015226 is an end mill holder designed for HSK63A taper shank spindles in CNC machining centers. It accepts a 1-inch bore and provides 3.75 inches of projection, positioning the cutting tool at the correct distance from the spindle face for a wide range of milling operations. The 2-inch nose diameter and 2.46-inch clamping depth deliver rigid tool engagement, reducing vibration and runout during high-speed cuts. Built with through-coolant capability, this holder channels coolant directly to the cutting edge, supporting longer tool life and improved chip evacuation at elevated feed rates.

This holder is suited for use in production machining environments where consistent tool positioning and thermal management are critical. Typical applications include face milling, slotting, and profiling operations on vertical and horizontal machining centers equipped with HSK63A spindle interfaces. It is balanced to 15,000 RPM, making it appropriate for high-speed machining of aluminum, steel, and other common workpiece materials. Machinists and CNC setup technicians working in job shop or production floor settings will find this holder a direct-fit solution for HSK63A-equipped equipment.

Key Features

• HSK63A taper shank for positive, repeatable spindle engagement
• 1-inch bore diameter accommodates standard end mill shanks
• 3.75-inch projection for extended reach applications
• Through-spindle coolant delivery channels fluid directly to the cutting zone
• Balanced to 15,000 RPM for high-speed machining compatibility
• 2.46-inch clamping depth provides secure tool retention under load

Compatibility

Designed as an OEM-style end mill holder for CNC machining centers equipped with an HSK63A taper spindle interface accepting a 1-inch shank bore.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or CNC setup technician with the spindle fully stopped and machine power locked out per facility lockout/tagout procedures. Use the appropriate HSK torque wrench and collet nut tooling specified for HSK63A assemblies — do not use improvised tooling on the holder or drawbar mechanism. Verify runout with a dial test indicator after seating the holder before returning the machine to production. Confirm coolant passages are clear and free of obstruction before engaging through-spindle coolant flow.