Various types. Branded TOKU or RRA. Square drive from 1/4" to 3/8". Bolt capacity from 8 to 12 mm. Rotations from 135 p/min to 135 p/min. Torque from 28 Nm to 120 Nm. Air consumption from 5.0 l/sec to 8.0 l/sec. Weight 0.5 kg to 1.9 kg.