Metabo 603624420 Corded 4-1/2″ / 5″ Angle Grinder WP 11-125 Quick

The Metabo WP 11-125 Quick Angle Grinder is a compact, ergonomic powerhouse designed for demanding cutting and grinding applications. Built with a paddle switch and integrated dead man function, it delivers enhanced user control and safety without compromising performance. Supporting both 4-1/2″ and 5″ discs, this grinder is powered by a 1,100-watt Metabo Longlife motor that produces 3.2 Nm (28 in-lbs) of torque and sustains speeds up to 11,000 RPM for fast material removal.

This model includes Metabo’s M-Quick system for tool-free disc changes, a twist-proof adjustable guard, and a mechanical safety clutch that minimizes kickback in case of wheel jam. Ideal for metalworking and construction environments, the WP 11-125 is engineered for long service life thanks to its dust-resistant design and auto-stop carbon brushes. German-manufactured precision ensures consistent power and reliability, even under tough site conditions.

Metabo Corded 4-1/2″ / 5″ Angle Grinder (Paddle Switch) At a Glance

• Paddle Switch with Dead Man Function: Ergonomic safety design ensures automatic shut-off when released for added protection
• Metabo Longlife Motor: Delivers up to 20% more overload capacity and 50% more torque with patented dust protection
• M-Quick Disc Change System: Enables tool-free disc replacement with a push-button mechanism for fast transitions
• Tool-Free Adjustable Guard: Twist-proof for secure repositioning during grinding or cutting
• S-automatic Mechanical Safety Clutch: Minimizes kick-back during sudden disc stoppage for operator safety
• Adjustable Gear Housing: Rotates in 90° steps for left-handed users or alternate grip positions
• Auto-Stop Carbon Brushes: Extend motor life by stopping the machine before critical wear
• Made in Germany: Recognized for engineering precision and long-term reliability on professional job sites

Markets

• Metalworking and Fabrication Shops: A high-safety option for weld grinding, beveling, and cut-off tasks on steel or aluminum
• Construction and Framing Crews: Provides power and control for cutting fasteners, conduit, or rebar on-site
• Industrial Maintenance & Repair: Delivers reliable torque for equipment service or facility upkeep
• Municipal Services & Utilities: Trusted for its safety features and compact form in repair work or confined spaces
• General Contractors: Well-suited for demolition prep and finishing work in concrete and metal
• Shipbuilding & Marine Repair: Paddle switch adds safety during grinding or cutting in unstable or slick environments
• Trade & Apprenticeship Programs: A practical training tool with integrated safety systems and ergonomic controls

The Metabo W 11-125 Quick is a Safety-Driven Grinder for Precision and Power. The paddle switch with dead man function ensures immediate shutdown when grip is released, offering an essential layer of safety in high-risk environments. Metal fabricators appreciate the easy disc swaps and overload protection, while contractors benefit from the powerful motor and slim handle for overhead or confined work. This model delivers safety, ergonomics, and speed—whether grinding welds, cutting pipe, or prepping concrete edges.

Metabo 603624420 Corded 4-1/2″ / 5″ Angle Grinder (Paddle Switch) WP 11-125 Quick Features

• Low fatigue as never before: compact angle grinder with smallest handle circumference in its class for perfect ergonomics
• Longer service life, more power: the Metabo Longlife-motor with patented dust protection, up to 20% more overload capacity and 50% more torque
• Tool free, fast disc change at the touch of a button with the Metabo M-Quick-System
• Tool-free adjustable guard; twist-proof
• Paddle switch with dead man function: safe to operate due to an ergonomically integrated non-slip switch
• Metabo S-automatic mechanical safety clutch: minimises kick-back to the lowest level when the disc jams unexpectedly – for maximum user safety and swift progress
• Gear housing can be unscrewed, rotated in 90° steps and remounted for left-handed operation or cutting
• Auto-stop carbon brushes to protect the motor
• Suitable for 120 Volt direct current (DC)

Metabo 603624420 Corded 4-1/2″ / 5″ Angle Grinder (Paddle Switch) WP 11-125 Quick Includes

• (1) Guard
• (1) Side Handle
• (1) Inner Support Flange
• (1) M-Quick Flange Nut

Metabo 603624420 Corded 4-1/2″ / 5″ Angle Grinder (Paddle Switch) WP 11-125 Quick Specifications

• Disc Diameter: 115 / 125 mm (4-1/2″ / 5″)
• Rated Input Power: 1100 W
• Output Power: 720 W
• No-Load Speed: 11,000 RPM
• Speed at Rated Load: 7,500 RPM
• Torque: 3.2 Nm / 28 in-lbs
• Spindle Thread: 5/8″ – 11 UNC
• Handle Circumference: 195 mm / 7.688″
• Weight (without cable): 2.3 kg / 5.1 lbs
• Cable Length: 2.5 m / 13 ft

Vibration Levels

• Surface Grinding: 5.8 m/s² ±1.5 m/s²
• Sanding with Abrasive Paper: 2.6 m/s² ±1.5 m/s²

Noise Emission

• Sound Pressure Level: 94 dB(A)
• Sound Power Level: 105 dB(A)
• Uncertainty (K): ±3 dB(A)

Metabo 603624420 Corded 4-1/2″ / 5″ Angle Grinder (Paddle Switch) WP 11-125 Quick Warranty

• Metabo’s XXL Warranty. FREE: 3-Year XXL Warranty on all Tools

Why Professionals Choose the Metabo Corded 4-1/2″ / 5″ Angle Grinder WP 11-125 Quick

Known as a “paddle grinder” on job sites, the WP 11-125 Quick is often chosen for jobs where control, torque, and tool-free use make all the difference. Its paddle switch gives operators peace of mind in unstable or high-vibration situations, while the German-built motor keeps cutting and grinding consistently under pressure. Whether searched as a “Metabo 5 inch paddle grinder,” “quick-change grinder,” or “dead man switch grinder,” this model stands out as a tool that’s ready for serious work.