This Milwaukee M12 FHIR38-0 FUEL High Speed Ratchet features a 3/8" square drive and delivers up to 47 Nm of torque and 450 rpm for faster application speed and increased productivity. Its 19 mm low profile head design allows for better access in tight spaces, and the variable speed metal trigger provides ultimate control. The tool is built with Milwaukee's industry-leading FUELâ„¢ technology, a reinforced mechanism for greater durability, and a rubber overmold that withstands corrosive materials and enhances comfort. It can fasten and remove up to 210 M8 bolts on a single M12B2 battery charge. The DNA of the FUELâ„¢ platform redefines the balance of cordless technologies with the POWERSTATEâ„¢ brushless motor, REDLITHIUMâ„¢ battery pack, and REDLINK PLUSâ„¢ electronic intelligence for outstanding power, run time, and durability.