SP Air's 1/2" Composite Air Drill, No. SP-7527, features a double-gear mechanism with a free speed of 400 rpm. It weighs 2.9 lbs and has a length of 7-5/64”. The unit has a chuck size of 1/2” (13mm) and a 1/4” air inlet. With the tool’s SAS (side and side) forward/reverse system, the user can easily switch directions with one hand. The tool is made in Japan.