The Metabo W 850-125, 4.5/5 In. Angle Grinder with Lock-on is engineered to deliver fast material removal in a compact, ergonomic and lightweight design for improved handling. Metabo's heavy duty 8 Amp, 850-watt motor produces 11,500 rpm with an unobstructed rear air inlet and optimized air flow for increased overload capacity under heavy loads in tough applications like weld preparation, grinding and brushing weld seams, metal removal, cutting rod, angle iron and pipe. The motor includes auto-stop carbon brushes to protect the motor and an epoxy coated field winding for long service life. The tool features a two-position side handle, low profile die-cast aluminum gear housing for work in restricted spaces, 4.5/5 In. combination burst proof guard for versatility, and lock-on slide switch for extended use.