Lite Dual "Double" Chuck Adapter for 1" Arbors

Our unique and patented Adapter is made of Hardened/Anodized "Aircraft Quality" Rust-Proof Aluminum and is stronger and lighter that the old fashioned steel versions.  That means it easier to mount and adjust for the perfect cut every time.  It is designed with 2 different size sets of expanding jaws on opposite sizes of the main body, just flip to match the rotor size. It is the fasted set up since the jaws grip the center-hole and completely eliminate the need for a dozen different centering cones.

Note that passenger car jaws are permanently mounted on one side and truck jaws on the other side, so no need to change them out for different jobs.

Fits all popular 1” arbor brake lathes.

Handles virtually all hub-less drums and rotors (including composite) through 1 ton vehicles
(Range: 2.125”- 5.75”).

Kit contains only 5 adapter components so easy to store, obviously 75% fewer pieces means less maintenance and lower initial cost.

The weight and mass of the Dual/Double Chuck and Solid Backing Plates virtually eliminates chatter and vibration from all hub-less applications, including composite drums and rotors.

Three steel jaw have been the standard in professional machine shops for a century, they completely eliminate run-out and set-up problems with their self-centering concept.

Kit Includes:
  • Dual/Double Chuck Adapter  (5”diameter dual/double sided chuck)
  • Small Backing Plate  (4-3/4” diameter)
  • Medium Backing Plate  (5” diameter)
  • Toyota Backing Plate  (6-1/4” diameter)
  • Large Backing Plate  (7-1/4” diameter)
  • Wrench  (3/8” drive) 


BENIFITS over other Adapter Types:
  • Fits drums and rotors with centering holes from 2 1/8" to 5 3/4" from compact cars to 1-ton trucks
  • Eliminates run-out and set-up problems with its self-centering design
  • Lightweight composite
  • Stronger than steel
  • Fits all 1" arbor brake lathes
  • Quick conversion
  • Rust resistant
  • Less wear and tear on brake lathe
  • Made in U.S.A.

In comparison to standard circle adapters and older cone style adapter set ups, our Patented "Chuck" systems is faster and easier to use on a day to day basis.  Because center-hole sizes vary greatly on rotors and drums, adapter sets must contain many different size range centering cones.  When a technician sets up a rotor or drum, he must waste time looking and confirming the proper cone and clamping cup combinations.


Simple Instructions:  Machines up to 1-ton truck drums and rotors.
  1. The "Dual Jaw" Double Chuck has an “Auto” side and a “Truck” side, just pick the one that best fits your center circle.
  2. Because there are no jaws to change or pieces to lose, just flip the chuck over and begin to tighten the jaws until the chuck is tight and secure. Lift the assembly and carefully slide onto the arbor and secure with arbor nut and spacers.
  3. You are ready to go, one simple kit is all you need.