Kennametal 1021462 ER11 Collet Chuck Straight Shank

Product Description

The KENNAMETAL 1021462 is an ER11 collet chuck designed for precision toolholding in CNC machining centers, lathes, and milling applications. It features a straight shank with a 1/2-inch shank diameter and accepts ER11 collets with a capacity range of 0.51 mm to 7.11 mm (0.020 inches to 0.280 inches). The chuck delivers a total indicator runout (TIR) of 0.0001 inches (0.0025 mm), making it suitable for close-tolerance work. Through-coolant capability routes cutting fluid directly through the spindle to the cutting zone. The wrench-actuated collet nut has a 0.63-inch diameter. Licensed machinists and CNC setup technicians are the primary installers of this toolholder.

This ER11 collet chuck is suited for light to medium-duty toolholding in both production and job-shop environments. The straight shank configuration is compatible with machine spindles that accept 1/2-inch straight shank toolholders. Its compact ER11 collet series and 7-inch overall length make it appropriate for applications where projection and reach must be controlled. The through-coolant feature supports high-speed cutting operations where flood coolant alone is insufficient for chip evacuation or tool life.

Key Features

• ER11 collet system with capacity range of 0.51 mm to 7.11 mm (0.020 to 0.280 inches)
• TIR of 0.0001 inches for high-precision toolholding
• Through-spindle coolant delivery for improved chip control and tool life
• Straight shank, 1/2-inch diameter with 5.96-inch shank length
• 1.04-inch projection from gauge line to collet face
• Balanced to 8,000 RPM for stable high-speed operation

Compatibility

Designed for use with ER11 series collets in machine spindles that accept a 1/2-inch straight shank toolholder with through-coolant capability.

Installation Notes

Installation and setup should be performed by a qualified machinist or CNC toolroom technician. Before installing or removing the chuck, ensure the machine spindle is fully stopped and the control is in a safe state. Use the appropriate ER11 collet nut wrench to seat and torque the collet nut — do not use impact tools on the collet nut. Verify through-coolant connections are sealed and rated for the machine coolant pressure before operation.