Can be as small as 3 1/2 Inches with use of only 4 Bumpers. 8 Rubber Bumpers with Stainless Steel Washers.
Wingnuts are used for tightening each of the 8 bumpers to grip the bowl or platter in the chuck. Aluminum spindle Faceplate 1 Inch x 8 TPI which is held in place with 10/32 Machine screws and Tee Nuts. Not to be used above 600 RPM. Shown on Powermatic 3520B with adapter but will fit any lathe with 1. X 8 TPI spindle with 12 Inch Bed Swing - Overall diameter is 11 7/8 Inches.Excellent addition to your Woodturning tools!! Once you use this chuck, you will be amazed as how easy it is to grip a bowl or platter to turn the bottom of the item. No need for Jumbo Jaws or Vacuum Chuck to turn the foot of your bowl or platter. The item "Woodturning Wood Lathe Longworth Chuck 12 Bowl Turning Tool Jig 1 x 8 TPI" is in sale since Thursday, December 16, 2021. This item is in the category "Crafts\Home Arts & Crafts\Woodworking\Wood Turning Hand Tools". The seller is "junkcars" and is located in Dubuque, Iowa. This item can be shipped to United States.