J421 JACOBS RUBBERFLEX COLLET .139-.257

FEATURES:

• Parallel jaw jnsert 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 O.D. Tapers, front and back, to minimize T.I.R.
• Automatically seals tool O.D. to prevent coolant flow Through thus increasing tool wear.
• Seals collets and machine spindles to protect from abrasive particles and swarf.

J421 JACOBS RUBBER-FLEX COLLET .139-.257