Kennametal 1901046 ER16 Collet Chuck CAT40 Taper Shank

Product Description

The KENNAMETAL 1901046 is an ER16 collet chuck with a CAT40 taper shank, designed for use in CNC machining centers and milling applications. It accepts ER16 collets with a clamping range of 0.51 mm to 10 mm (0.020 to 0.394 inches), making it suitable for a wide range of small-diameter tooling. The chuck features a 5-inch projection and through-coolant capability, delivering coolant directly to the cutting zone for improved tool life and chip evacuation. Weighing 2.85 pounds, this chuck is actuated by wrench and is balanced to 12,000 RPM for stable, vibration-free operation at typical production speeds.

This collet chuck is intended for use in machining centers equipped with CAT40 spindle interfaces. It suits residential toolroom and commercial production environments where precise, repeatable small-diameter tool holding is required. The through-spindle and DIN flange coolant delivery system supports high-speed drilling, reaming, and end milling operations. Tooling setups requiring a 5-inch gage-line projection benefit from this chuck where reach into deep fixtures or tall workpieces is necessary. Installation and setup are performed by machinists and CNC setup technicians.

Key Features

• ER16 collet system accepts tooling from 0.51 mm to 10 mm clamping capacity
• CAT40 taper shank for direct mounting in CAT40-spindle machining centers
• 5-inch projection (127 mm) provides extended reach for deep-fixture applications
• Through-coolant design with through-spindle and DIN flange coolant delivery
• Balanced to 12,000 RPM for stable high-speed operation
• Wrench-actuated collet nut with 1.102-inch (27.99 mm) collet nut diameter

Compatibility

Designed for use with ER16 series collets in CAT40-spindle CNC machining centers equipped with through-spindle or DIN flange coolant delivery.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machining center spindle before inserting or removing the chuck. Use the appropriate ER16 collet wrench and spanner to torque the collet nut — do not use impact tools on the collet nut. Verify coolant port alignment with the spindle interface before running coolant-through operations.