Kennametal 1123683 ER16 Collet 2.00mm 0.0787 Inch

Product Description

The KENNAMETAL 1123683 is an ER16 collet designed for precision workholding in CNC machining centers, milling machines, and other rotating spindle equipment. It accepts a nominal collet size of 2.00mm (0.0787 inches, 5/64 inch) and delivers a total indicator runout (TIR) of 0.0152mm, making it suitable for close-tolerance toolholding applications. The overall length is 27.51mm and the overall diameter measures 16.99mm. This collet is installed by machinists and toolroom technicians requiring consistent, repeatable tool grip in high-speed or precision-cut operations.

This ER16 collet is used in standard ER16-series collet chucks found in vertical and horizontal machining centers, CNC routers, engravers, and precision drilling setups across light industrial and production environments. It is suited for holding drills, end mills, reamers, and other round-shank tooling within the ER16 clamping range. Applications span both production shops and toolroom use where low runout and secure tool retention are required.

Key Features

• ER16 collet series with 2.00mm nominal collet size (5/64 inch)
• Low TIR of 0.0152mm for precise, repeatable tool concentricity
• Overall length of 27.51mm for standard ER16 chuck compatibility
• Overall diameter of 16.99mm fits standard ER16 collet chuck bodies
• Lightweight construction at 0.0514 pounds for minimal spindle load contribution

Compatibility

Designed as an OEM-style replacement collet for standard ER16-series collet chuck systems accepting 2.00mm shank tooling.

Installation Notes

ER collets are installed by qualified machinists or toolroom technicians. Before changing tooling, power down the spindle completely and confirm the machine is in a safe, locked-out state per applicable machine tool safety procedures. Insert the collet into the ER16 nut before seating in the chuck body, and tighten with the appropriate ER collet wrench to the chuck manufacturer's specified torque range. Inspect the collet seat and chuck bore for chips or damage before each installation to maintain the rated TIR performance.