1) Capacity: a) Steel: 10mm (3/8"); b) Wood: 15mm; c) Wooden screw: 4.5 x 35mm 2) Non-load speed: 0 - 700rpm 3) Soft / hard joint: 17 / 24N.m for QQ-14.4V, 11/19.6N.m for QQ-12V, 9/17.6N.m for QQ-9.6V, 7/15N.m for QQ-7.2V 4) UV protected TPE soft handle 5) Motor with a built-in fan highly resistant to overload 6) 22 stages' adjustable clutch for precise torque setting 7) All metal gear construction 8) Half-metal keyless chuck 9) Variable speed with electric feedback for increased power and control 10) Electric brake