Kennametal 1729904 ER32 Collet 0.1875 Inch

Product Description

The KENNAMETAL 1729904 is an ER32 precision collet designed for CNC machining centers, milling machines, and toolholding systems that use the ER32 collet series. It accepts a nominal shank diameter of 0.1875 inches (3/16 inch) with a minimum collet capacity of 0.1475 inches, providing a secure grip on small-diameter cutting tools and workholding shanks. The collet delivers a total indicated runout (TIR) of 0.0152 mm (0.0006 inches), supporting accurate, repeatable tool positioning in precision machining applications. Overall length is 1.575 inches. Machinists and CNC setup technicians install this collet as a standard replacement or additional capacity unit within an existing ER32 toolholding system.

This collet is suited for use in production and job-shop environments where ER32 collet chucks are already in service. It is appropriate for light to medium milling, drilling, reaming, and tapping operations using tooling with a 3/16 inch shank. The ER32 series is common in both vertical and horizontal machining centers across a wide range of machine tool brands, making this collet a broadly applicable replacement or spare unit for shops maintaining ER32 toolholding inventory.

Key Features

• ER32 collet series - fits standard ER32 collet chucks and toolholders
• 0.1875 inch (3/16 inch) nominal bore for direct shank clamping
• Minimum collet capacity of 0.1475 inches for reduced-shank tooling
• Low TIR of 0.0152 mm (0.0006 inches) for precise, repeatable runout performance
• Overall length of 1.575 inches for standard ER32 chuck depth compatibility
• Packaged individually - quantity of one per unit

Compatibility

Designed as an OEM-style replacement collet for use in standard ER32 collet chuck toolholding systems on CNC machining centers, milling machines, and similar machine tool platforms.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Always power down and lock out the machine spindle before removing or installing collets. Use the appropriate ER32 collet nut and a calibrated torque wrench per the machine tool manufacturer's torque specifications - do not overtighten or use impact tools on the collet nut. Inspect the collet bore and chuck taper for debris, nicks, or wear before seating the collet.