ER25M CNC Lathe Collet Chuck / Extension 3/4″ x 40mm w/o ER Mini Nut – AA

Description

Techleader ER Type high precision cylindrical shank lathe extension can be used in a wide range of applications on CNC lathes & Swiss CNC Screw Machines. Can be used for drilling, milling, reaming & rigid tapping  operations.

-Weldon Flat for set screw engagement

-O-Ring on the back of the shank for sealing for Coolant Thru machining operation.

– Run-out on the cylindrical shank are maintained within 5um/0.0002″.

-Surface finish max Ra0.25 which provides the ability for higher clamping force & torque.

-h6 tolerance on cylindrical shanks for better clamping & extended tool life

You can add your Swiss Made  Mini Nut from ordering from our Nuts for Tool holders category.

You can select different style nuts for your extension.

025-000-NM Mini Nut