Silverline - AIR DIE GRINDER KIT - 783100 Air die grinder will accept all 1/4" and 1/8" shank burrs and grindstones. Kit contains 10 mounted stones, 2 wrenches, 1/4" and 1/8" collets. Fitted with 1/4" BSP male quick connector. Air consumption 4.0 cfm.