The outer diameter of the disks for this chuck is 17.375"

Perfect for Laguna Revo 18|36 Lathe, Jet JWL-1840EVS 18" x 40" Wood Lathe, Grizzly G0733 18" x 47" Heavy-Duty Wood Lathe, and similar lathes.

Threads will be 1-1/4" x 8 TPI standard. 1x8 available on request at no extra charge.

This chuck will accommodate vessels up to 16" +/- 1/4"


18” Longworth Type 2 Package Contents:

1 @ Longworth Type @ Chuck Fully Assembled

1 @ Faceplate (Installed) with 1.25” X 8 tpi threads (Metric faceplates are available for an extra fee)

1 @ Doughnut Ring with a 6” opening

4 @ Snap-in Reducer Rings (Solid Ring Set) with openings of 5, 4, 3.5, 3 inches (used with 6” doughnut ring)

Hardware Set: 4 @ 3/8” X 4” bolts, 4 @ 3/8” X 8” bolts, 4 @ 3/8” wingnuts, 8 @ washers

1 @ Storage Stand


We currently use only Black HDPE 1/2" thick for all Longworth and Doughnut Chucks

The outer diameter of the disks for this chuck is 17.375"


When dealing with chucks this large a very little run-out or wobble is natural simply due to the HDPE plastic material used in its construction and the sheer size of the assembly spinning on the lathe. HDPE is practically indestructible and tough as nails but it is plastic and as such subject to some movement. This could be due to changes in temperature or simply how the bolts are tightened. I've never been bothered by it but some customers have been. If you are prepared to accept some minor wobble and work around it, you will be amazed at this new improved version which rolls two popular types of chucks into one unit. I re-engineered the new version so you can use both modes at the same time. It is literally the best of both worlds.

For additional information email me at or call the office at (770) 962-3821 Eastern time zone.


Write a review

Please login or register to review

Longworth Type 2 Combo For 18 inch & Up Lathes

Ron Brown's Best Longworth Type 2 Combo For 18 inch & Up Lathes QR Code
  • Brand: Ron Brown's Best
  • Product Code: Longworth Type 2 Combo 18 inch
  • Availability: In Stock
  • $450.40
  • $360.32

  • You save: $90.08 or 20.00%

Ask about the product


Tags: Longworth Type 2 Combo 18 inch

Customer Photos
Tag your photos using #longwort or Upload them here!