1) Capacity: a) Steel: 10mm (3/8"); b) Wood: 25mm (1") 2) Non-load speed: a) High: 0 - 1,250rpm; b) Low: 0 - 400rpm 3) Soft / hard joint: 24 / 35N.m for DE-18, 21/30N.m for DE-14, 17/25N.m for DE-12, 14/20N.m for DE-9. 4)LED job light for excellent work efficiency in dimly-Lit places 5) UV protected TPE soft handle 6) Motor with a built-in fan highly resistant to overload 7) 22 stages' adjustable clutch for precise torque setting 8) All metal gear construction 9) Two-speed gear box for max. torque 10) Half-metal keyless chuck 11) Variable speed with electric feedback for increased power and control 12) Electric brake