Unthreaded Backplate/Adapter for 8″ Lathe Chucks ~ No bolt holes. ~ Machining is required before mounting your chuck to ensure concentricity. ~ For 3 & 4-jaw chucks. ~ Made of high grade casting steel. No bolt holes. For 3 & 4-jaw chucks. Made of high grade casting steel. Machining is required before mounting your chuck to ensure concentricity.
