Popular JACOBS J440 5/16″ – 5/8″, For Use In Models 70X, SPD7 Rubber Flex Collet

Benefits

• Jacobs® Rubber-Flex Collets outperform conventional split-steel collets in gripping power, accuracy and durability.

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 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