Unidex K-Style Spare Parts Solid Drilling Main Page Unidex K-Style Spare Parts 1.496 - 4.645": Cartriges and Outer Insert Unidex K-Style Spare Parts 1.496 - 4.645": Inner/Center Inserts and Guide Pads Note: Outer cartridges are supplied with an insert screw, but without inserts, lock screws or keys. Inner cartridges are supplied with insert screws but without insert or keys. Guide pads and sub guide pads are supplied qualified (ground to size), but without a lock screw. ©1998-2007 American Heller Corp. All rights reserved.