Description Can Use with a 5″ Lathe Chuck on Mini Lathes in Place of 3″ Chuck Works on Spindles with Only 3 Holes Compatible with 5″ 3- or 4-Jaw Lathe Chucks 95 mm Diameter Registration Boss 5″ Lathe chuck adapter. This adapter lets you mount a 5″ lathe chuck on your mini lathe in place of a 3″ (80 mm) chuck. The adapter mounts to the 3-hole pattern on the spindle so it works on spindles with only three holes. This adapter has a 95 mm diameter registration boss and is drilled for both 3- and 4-jaw chucks on a 108 mm bolt circle. Specifications Outside Diameter Ø 4.9″ (125 mm) Overall Thickness Ø 0.77″ (19.5 mm) Center Hole Ø 1.2″ (30 mm) Spindle Side Registration Recess Ø 2.2″ (55 mm) Spindle Side Bold Circle Ø 2.6″ (66 mm) Chuck Side Registration Boss Ø 3.7″ (95 mm) Chuck Side Bolt Circle Ø 4.3″ (108 mm) Chuck Mounting Holes 6
