ER20M Collet Chuck Wrench and Nut Set

The ER20M Collet Chuck Wrench is a two-piece set designed for CNC milling machines, lathe chucks, and machine tool maintenance. It includes one carbon steel wrench and one cast steel clamping nut.

The wrench fastens and removes collet clamping nuts on precision machinery. Its carbon steel construction provides the strength and hardness needed for reliable performance in industrial applications. The cast steel nut fits M24 × P1 threading with a 16mm bore diameter, making it compatible with standard ER20M collet systems.

Dimensions are compact for workshop efficiency: the wrench opens to 16.5mm, measures 135mm total length, while the nut sits at approximately 28mm × 19mm (diameter × length). The wrench features a hanging hole on the handle for wall storage and easy portability. Size markings on the handle enable quick identification during use.

This set covers the essential accessories needed to install, adjust, and maintain ER20M collet chucks. Keep one in your toolbox for routine spindle maintenance.

Order your ER20M wrench and nut set today for reliable collet management.