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DeWalt DCG421 18v XR Cordless Compact Right Angle Die Grinder
The DeWalt DCG421 18V XR Cordless Compact Right Angle Die Grinder is a professional-grade cordless grinding tool designed for fabrication, metalworking, automotive, and maintenance applications.
Powered by a 32mm brushless motor delivering up to 447 MWO, the DCG421 handles grinding, polishing, deburring, and surface preparation with consistent professional performance. Four selectable speed settings — 10,000, 15,000, 20,000, and 24,500 RPM — allow precise control across a wide range of materials and applications.
The compact right angle design makes it well suited to confined spaces and awkward angles where conventional grinders cannot reach. Lightweight construction reduces operator fatigue during extended use, making it a practical choice for contractors working on demanding site tasks throughout the day.
Safety features include an electronic brake that stops the accessory in under one second after trigger release, and an electronic clutch that reduces kickback in the event of a pinch or stall. An integrated LED light ring improves visibility in dark or enclosed workspaces, while mesh debris covers protect the motor and electronics from dust ingress for extended service life. Compatible with both 6mm and 1/4" collets, the DCG421 supports a broad range of accessories, and the spindle lock allows quick changes without additional tooling.
Features and Benefits:
• Part of the DeWalt 18V XR Compact Range — superior ergonomics and manoeuvrability for professional use
• 32mm Brushless Motor — efficient, powerful, and built for long-term durability
• 447 MWO Output — professional grinding power for metalworking and fabrication tasks
• 4 Selectable Speed Settings — 10,000 / 15,000 / 20,000 / 24,500 RPM for precise application matching
• Compact Right Angle Design — improved access in tight spaces and at difficult angles
• Electronic Brake — stops the accessory in under one second for enhanced safety
• Electronic Clutch — reduces kickback in the event of pinch or stall
• Integrated LED Light Ring — improves visibility in dark or enclosed work areas
• Variable Speed Trigger with LED Backlit Selector — precise control during operation
• 6mm and 1/4" Collet Compatibility — supports a wide range of accessories
• Spindle Lock — fast accessory changes without the need for multiple spanners
• Mesh Debris Covers — protect motor and electronics from dust and debris
Specifications:
Voltage: 18V
Motor Type: Brushless
Maximum Power Output: 447 MWO
Speed Settings: 10,000 / 15,000 / 20,000 / 24,500 RPM
Brake Type: Electronic brake
Clutch Type: Electronic clutch
Collet Sizes: 6mm and 1/4"
Lighting: Integrated LED light ring
Speed Control: Variable speed trigger with LED backlit selector
Contents:
DeWalt DCG421 18V XR Cordless Compact Right Angle Die Grinder (Body Only)
No Battery
No Charger
No Case
6mm collet
1/4" collet
Collet spanner
Battery AH Explained
The best way to describe battery amp hour is that this is effectively the size of your fuel tank, the more amp hours your battery has then the longer the battery will last between charges. More amp hours does not increase the power of a given tool.
Battery Voltage Explained
A tool with a higher voltage than another is a bit like choosing an engine in a car, the higher voltage will generally mean higher power & performance. As with cars though a bigger engine does not always translate to better performance so it is important to compare the specifications of tools at different voltages between different manufacturers.
Specifications
More Help
If you require more information or assistance with this product please consult the links below :
There is a DeWalt manufacturer warranty for this product which covers all manufacturing defects for the normal lifetime of the tool but does not cover wear and tear or damaged cause by misuse. This does not affect your statutory rights. For more details see <a href='/dewalt-warranty/warranty/122/' style='margin: 0; padding: 0;'><strong>DeWalt Warranty</strong></a>.
Get help regarding DeWalt DCG421 18v XR Cordless Compact Right Angle Die Grinder
For any technical enquiries relating to this product it is best to call the manufacturer, DeWalt, direct on 0330 808 0719.
For any other queries relating to ordering this item, stock availability, existing orders or returning faulty items etc please contact us at Tooled-Up at sales@tooled-up.com or call on 020 8805 3535.










