Hardinge is the world's largest manufacturer of spindle tooling and provides stock delivery of a vast array of styles, shapes and sizes for all machine types:

• Automatic Screw Machines
• Turret Lathes
• Rotary Transfer Machines
• CNC Lathes
• Milling Machines
• Grinding Machines

From bar stock to finished product - 100% in-house Individual care goes into every collet, feed finger and pad, at each manufacturing process, from handling the initial bar stock to polishing and laser etching. Generations of skilled-machine operators have taken part in the many important processes of producing a hardened and ground collet. Hardinge's process expertise, precision and accuracy provides a workholding product that is world-renowned.

Collets for Automatics
Hardinge manufactures workholding solutions for Acme-Gridley, Brown & Sharpe, Davenport, Gildemeister, New Britain, Tornos Bechler and most other brands of automatic lathes. Solid collets, burring collets, feed fingers, bushings, master collets and pads are available.

Hydromat Collets
Hardinge offers stock delivery on standard round, hex and square sizes. Non-round stock, special shapes and stepped-hole collets are available. All hex and square collets have two keyways, one to the corner and one to the flat, for synchronization. Custom collet manufacturing is available for Hydromat and other rotary transfer machines.

Turret Lathe Collets
Hardinge manufactures collets for Bardons & Oliver, Foster, Gisholt, Jones & Lamson, Morey, Pratt & Whitney, Warner & Swasey and most other brands of turret lathes. Choose from solid collets, master collets & pads and emergency collets & pads.

HQC Quick-Change Collet Systems
Change from one size collet to another size in less than 20 seconds! True parallel clamping minimizes stock "push back" and requires less draw bar force to achieve the same gripping capability as conventional collets. Less draw bar force greatly reduces the breakage of closing fingers and pins common when bar varies beyond the range of a standard solid collet. Systems are available for Acme-Gridley, Cone, New Britain and Wickman machines.

ID Pick-off Collet Assemblies
Hardinge engineers ID pick-off collet assemblies for Euroturn, Gildemeister and Tornos Deco that fit in the standard OD pickoff attachments to save time and money, eliminating the purchase and installation of a costly ID pickoff attachment from the machine builder.