Grinding Wheel DeWalt DT3169 225 mm K80 abrasive disc for metal and steel

DeWalt DT3169 225 mm K80 grinding wheel is an abrasive disc designed for metalworking applications. With a 225 mm diameter and K80 grit, this wheel is intended for use on angle grinders that accept 225 mm discs and provides effective material removal on steel and other ferrous metals. It is suitable for tasks such as cutting, grinding, deburring and preparing surfaces prior to welding or finishing.

Advantages

The disc combines a durable abrasive composition with a balanced construction to deliver consistent cutting and grinding performance on metal. K80 grit offers a compromise between material removal rate and surface finish, enabling efficient stock removal without excessive heat buildup when used correctly. The 225 mm size gives extended service life compared with smaller discs and is compatible with standard angle grinders made for this diameter.

Suitable for

• Cutting and shaping steel components
• Grinding weld seams and removing excess weld material
• Deburring metal edges after fabrication
• Surface preparation before painting or coating

Key specifications

• Diameter: 225 mm
• Abrasive grit: K80
• Intended material: steel and other ferrous metals
• Disc type: flat abrasive grinding wheel for angle grinders

How to use

Mount the disc on an angle grinder designed for 225 mm wheels, ensuring the grinder is disconnected from power before fitting. Check that the disc is free of cracks or damage and that it is correctly seated on the arbor flange. Use appropriate rotation direction markings if present. During operation, apply steady, even pressure and avoid forcing the disc into the workpiece; allow the abrasive to do the cutting. Maintain a correct angle between the disc and the work surface for the task—flatter for surface preparation and a steeper angle for stock removal. Interrupt work periodically to inspect the disc and the workpiece for overheating or excessive wear.

Usage recommendations

Always use suitable personal protective equipment: eye protection, hearing protection, gloves and protective clothing. Ensure the grinder’s speed rating matches the disc’s allowable maximum RPM. Work in a well-ventilated area and secure the workpiece to prevent movement. Replace the disc if damaged, warped or excessively worn.