Angle Grinder DeWALT DWE4157-QS

The DeWALT DWE4157-QS angle grinder is a compact, corded power tool designed for grinding and cutting tasks on construction sites, workshops, and at-home projects. Equipped with a 900 W motor and a maximum no-load speed of 11,800 RPM, this tool supports a 125 mm (12.5 cm) grinding disc and uses an M14 spindle thread. The grinder combines a lightweight body of 2.05 kg with a slim profile (270 mm length, 80 mm height) for comfortable one-handed and two-handed operation.

Advantages

The DeWALT DWE4157-QS delivers consistent rotational speed under load thanks to its 900 W motor, enabling efficient material removal and cutting performance. Its compact dimensions and low weight improve handling in tight spaces and reduce user fatigue during extended use. The M14 spindle thread ensures compatibility with a wide range of 125 mm accessories. Durable construction and a two-colour housing provide clear tool orientation and resilience in workshop environments.

Suitable for

• Cutting and grinding steel, metal profiles and reinforcement bars
• Removing weld spatter, rust and paint from metal surfaces
• Shaping and smoothing masonry and concrete using appropriate discs
• Painters and carpenters needing surface preparation with sanding or abrasive discs
• General workshop tasks requiring a compact, corded angle grinder

Key specifications

• Motor power: 900 W
• No-load speed: up to 11,800 RPM
• Compatible disc diameter: 125 mm (12.5 cm)
• Spindle thread size: M14
• Power source: AC mains (corded)
• Weight: 2.05 kg
• Dimensions (approx.): 270 mm length, 80 mm height
• Housing colour: yellow and black

How to use

Before use, check that the selected disc is rated for the grinder's maximum RPM and that it is suitable for the intended material. Secure the correct disc onto the M14 spindle following the manufacturer's mounting instructions, and tighten with the provided flange and nut. Connect the tool to a suitable AC power outlet. Hold the grinder with both hands where appropriate, keeping a firm grip and maintaining control over the tool while starting it. Apply steady, even pressure during grinding or cutting—avoid forcing the disc into the workpiece. Allow the disc to reach full speed before contacting the surface and move the tool smoothly to prevent gouging or kickback. After finishing, switch off the tool and wait for the disc to stop completely before setting the grinder down.

Usage recommendations

Use appropriate personal protective equipment: safety glasses or a face shield, hearing protection, gloves and respiratory protection when working with dust-producing materials. Select the correct disc type (cutting, grinding, flap, or diamond) for the task and ensure discs are within their service life and undamaged. Maintain clear ventilation for corded operation, and avoid using the tool in wet conditions. Regularly inspect brushes, power cord and guards; replace worn components according to maintenance guidance.