Jacobs J421 Metric Tap Chuck Collet, 12.7mm - GW 9748

A collet is a specialized holding device used in machining and manufacturing processes to secure and grip a work piece or a tool in a machine tool, such as a milling machine or a lathe. It is a type of clamping mechanism designed to provide a strong and precise grip on cylindrical or round objects.

Features:

Parallel jaw insert surfaces exert uniform, accurate gripping force up to three times greater than can be achieved with split - steel collets
Each collet accepts and precisely centers a wide range of both decimal or metric diameters (within individual capacity ranges) to speed setups and increase machining productivity
Durable one - piece construction. Synthetic rubber retains flexibility and resists deterioration from heat, coolants and cutting compounds
Steel jaw inserts precision ground after molding process to ensure maximum gripping accuracy. Hardened for greater wear resistance than split steel collets
Each collet bore is held concentric to the old Tapers, front and back, to minimize tier
Automatically seals tool old To prevent coolant flow through thus increasing tool wear
Seals collets and machine spindles to protect from abrasive particles and swarf