What is a keyless chuck and how does it work?

A keyless chuck is simply a holder that allows you to mount and hold different tools such as drill bits, abrasive tools or sanding drums. Climax Keyless Chucks are manufactured to mount on a 1/2-20 threaded shaft. Tightening or loosening the chuck will open or close the jaws allowing for installation or removal of various tools.

Pictured here is a C-2 keyless chuck on a threaded shaft holding an abrasive wire wheel.
Pictured here is a C-2 keyless chuck holding an abrasive cone mounted to a round motor shaft using a Climax Motor Arbor

For applications involving an existing round shaft as seen in the image above, Climax offers a wide range of Motor/Grinder Arbors that can be used in conjunction with our keyless chucks. These Motor & Grinder Shaft Arbors can be found on our website here:

Climax offers two keyless chucks that accommodate tool shank sizes up to 1/2″ in diameter. These parts are:

Climax Part No.Fits Threaded ShaftChuck Capacity
C-21/2″-20 RH1/4″
C-41/2″-20 RH1/2″

For more information on our keyless chucks, contact our customer service department at 800-542-6552 or email us at

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About Us

About Us

Since our humble beginnings in 1946, Climax Metal Products has served the power transmission industry with endless innovative products that hold numerous applications in various major industries.

Climax is a proud American business that started with a few workers at a small shop in Cleveland, Ohio. Today, Climax is a respected US manufacturer. Producing an extensive line of shaft collars, rigid couplings, and selling through distributor networks, Climax has established itself as a world leader in quality engineered products.

With the foundation of our company’s modest beginning and our breadth of innovative products, Climax has demonstrated that we are a company rooted in history with modernized manufacturing practices with an assured future.

Unparalleled customer service, efficient manufacturing, quality products … our promise to you!

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