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. Includes 1/4″ bayonet quick connect. Air consumption 4.0cfm. Overall length of grinder 160mm. 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. Includes 1/4″ bayonet quick connect. Air consumption 4.0cfm. Overall length of grinder 160mm.