Dewalt Angle Grinder DW840K

The DEWALT DW840K is a high-performance, corded angle grinder designed for heavy-duty grinding applications. Powered by a 13.0 Amp AC/DC motor, it delivers 8,000 RPM for fast and efficient material removal. This powerful tool is ideal for handling 7-inch grinding wheels, offering both speed and strength for various metal grinding tasks. The grinder comes with a carrying bag, five grinding wheels, and essential accessories, making it a comprehensive kit for professionals and DIY enthusiasts alike. Its lightweight design ensures reduced user fatigue, and the sealed ball and roller bearings help to extend the motor’s lifespan. This tool also features an adjustable keyless guard for safety and convenience, as well as a spindle lock for easy and quick bit changes.

Detailed Comparison: DEWALT DW840K vs Other Angle Grinders

Key Specifications Comparison

Pros and Cons

Pros of the DEWALT DW840K:

• High Power: 13.0 Amp motor with 8,000 RPM for efficient grinding.
• Comprehensive Kit: Includes five grinding wheels, side handle, carrying bag, and more.
• Durable Motor: Sealed ball and roller bearings extend motor life.
• Spindle Lock: Allows easy, single-wrench bit changes.
• Safety Features: Includes safety glasses, gloves, and hearing protection.

Cons of the DEWALT DW840K:

• Weight: At 19.25 lbs, it is heavier than some smaller models, which may cause user fatigue during extended use.
• No Variable Speed: Does not offer variable speed control, limiting versatility.

Key Features of the DEWALT DW840K

• Powerful 13.0 Amp Motor: Provides reliable power for demanding grinding applications with 8,000 RPM.
• High Power-to-Weight Ratio: Ensures greater efficiency and reduced user fatigue during prolonged use.
• Keyless Adjustable Guard: Allows quick and easy adjustments to redirect sparks, enhancing user safety.
• Spindle Lock: Facilitates quick and easy accessory changes with a single wrench.
• Comfortable Rear Handle Design: Designed for better control and comfort during use.
• Included Accessories: Comes with a set of five grinding wheels, a wrench, a backing flange, clamp nut, adjustable guard, and a 2-position side handle.
• Warranty: Backed by a 3-year limited warranty, 1-year free service contract, and a 90-day money-back guarantee.

Useful Tips and How-To Section

1. Changing the Grinding Wheel:
   • Ensure the tool is unplugged and the spindle lock is engaged.
   • Use a single wrench to loosen the nut and remove the old grinding wheel.
   • Place the new wheel on the spindle and secure it tightly with the wrench.
2. Adjusting the Guard:
   • Use the keyless adjustment feature to easily change the position of the guard.
   • Adjust the guard to redirect sparks and debris away from your body.
3. Maintaining the Tool:
   • Regularly check the condition of the motor and bearings.
   • Clean the tool after each use to prevent debris buildup.
   • Replace the brushes when necessary to ensure consistent motor performance.

Related Products

1. DEWALT 20V MAX Brushless Cordless 2-Tool Grinder Kit DCK203P1 – A versatile and portable cordless grinder kit perfect for professionals on the go.
2. DeWalt DW831 5″ Medium Angle Grinder – Compact 5-inch grinder ideal for light to medium-duty grinding tasks.
3. DeWalt Angle Grinder DWE4120 – A powerful 4.5-inch grinder designed for handling tough grinding tasks.
4. DeWalt 5″ Brushless Paddle Switch Small Angle Grinder DWE43214 – Offers a brushless motor for longer runtime and more efficient grinding.
5. DEWALT DWE43114N High Performance Paddle Switch Grinder – High-performance grinder with paddle switch for user-friendly operation.

Dimensions Table