Only 172mm length and weighs just 2.2kg with a 4.0Ah battery fitted. Compact and manoeuvrable to access tighter areas. Variable speed trigger, plus switchable from hi to lo torque setting for optimum control when tightening. Forward and reverse mode for tightening and loosening fastenings. Electronic brake, which offers near instant stopping power.Professional quality digital brushless motor provides smooth, frictionless operation. 1/2'' Square Drive with ball bearing to secure socket. Compatible with Kielder's interchangeable TYPE18 18v Li-ion battery system.