Brake Lathe Quick Chuck Adaptor - 3 Jaw Chuck w/ Backing Plate

Quick Chuck Adapter / Backing Plate / Key

• Quick Chuck (Fits drums and rotors with holes form 2-1/8" to 3-3/4") 
• Standard Backing Plate (5" diameter) 

Fits the following brake lathe brands:

Any 1" arbor lathe including:

Ammco- 3000, 3800, 3850, 4000, 4100, 6000, 7000.

Hunter- BL20, BL21, BL23, BL30, BL31, BL33

FMC - 601, 701, 702, 7600, 7700.

Accuturn 1450, 8499, 5223 8922L.

Ranger - RL8500.

Atlas - TR470

Interchangeable Part Numbers:

Ammco - 70042, AS70040, 70040

MT-RSR Insights:

Do you machine a lot of rotors? This is the solution for you. This not only eliminates inventory but saves time and reduces setup errors. This quick chuck adapter is self-centering. Fits drums and rotors with centering holes from 2-1/4 to 3-3/4" for compact cars. With optional accessories, it can fit from 2-1/4 to 5-3/4" including all vehicles up to 1-ton trucks.

See the how-to video here.

Click here for how to mount the jaws

Click here for how to use 7040

We aim to ship all orders within 1–2 business days. Delivery times may vary based on your location and selected shipping method.

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Not satisfied with your purchase? We accept returns within 30 days of delivery on most items in new condition.

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Got questions? We’ve got answers. Check out our FAQ section for info on orders, shipping, returns, and more.

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