The milwaukee m12bddxkit 202c removable chuck drill driver is a high performance sub compact 4 in 1 drill driver system for extreme versatility the removable chuck system with 3 different heads for multiple applications standard 10mm keyless chuck full metal right angle 14in hex drive head and full metal off set 14in hex drive head the 14in hex drive behind the chuck fitting reduces the drill length to 153mm when required it has a full metal planetary gearbox transmission for extreme durability