18V ONE+™HP Cordless Brushless Compact Die Grinder (Bare Tool)

RDG18C-0


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Features

  • ONE+ HP Compact Brushless Die Grinder, ideal for metal cutting, grinding, shaping, deburring, polishing and sanding
  • Innovative energy dense motor delivers optimal power and our advanced electronics maximises runtime
  • Powerful brushless motor delivers up to 22,500rpm
  • 4-speed settings and the variable speed paddle switch provides superb control
  • Compact design provides ultimate portability and easy overhead working
  • Variable speed trigger
  • As part of the 18V ONE+™ system for the home and garden, this tool can be powered by any ONE+™ battery!

Product Description

As part of the Ryobi 18V ONE+™ system of over 200 cordless tools for the home, garden, automotive, crafting and much more, the Ryobi 18V ONE+™RDG18C-0 HP Cordless Brushless Compact Die Grinder is perfect for cutting, grinding, shaping, deburring, polishing and sanding metal surfaces and much more.

Avoid the need for a noisy compressor and annoying air hose with the 18V ONE+™ HP Cordless Brushless Compact Die Grinder. HP Brushless technology delivers a powerful solution in the most compact and lightweight design ideal for use in tight workspaces such as in the engine bay or underside of a car. The compact size of the cordless die grinder allows for use in areas where air hoses may mar the work surface or get in the way. Powered by a HP Brushless motor, producing up to 22,000 RPM, this die grinder has 2 times the power compared to a typical pneumatic model. Featuring a 4-Mode speed control and responsive variable-speed trigger ensures maximum control and runtime in any work environment. Accessory changes are quick and easy with the on-board spindle lock and single wrench. The ¼ in chuck allows for the use of most universal accessories.

Using a 5ah battery (not included), the Ryobi 18V ONE+™HP RDG18C-0 can polish steel for up to 56 minutes on a single charge. This is a bare tool - battery and charger are not included.

Customer Review Videos

Specifications

Performance
Disc diameter (mm)50
No load speed (rpm)0-22000
Switch typePaddle (Deadman) switch
Variable speedYes
Power Source
Charger includedNo
No. of batteries supplied0
Power18V
Weight
Weight (kg)-
Weight (without battery) (kg)0.7
Weight with battery pack (EPTA) (kg)1.1(RB1820C)
Noise
Sound power level (Lwa)(dB(A))75.5
Sound power level uncertainty (dB(A))3.0
Sound pressure level (Lpa)(dB(A))86.5
Sound pressure level uncertainty (dB(A))3.0
Vibration
Vibration level (m/s²)8.0
Vibration uncertainty (m/s²)1.5
Base Information
Article Number5133005139
EAN Code4892210196231
Power18V
Standard equipmentwrench
Supplied inOver 75% recycled cardboard carton

How long will my tool run for?

Compare our batteries and runtime to find out what’s the best option for you. You can power all tools with batteries within the same battery platform, however, the following are recommended for optimum performance. Please note, runtime may vary based on tool or application.

Minutes of polishing on steel (wire brush)

Reviews

18V ONE+™HP Cordless Brushless Compact Die Grinder (Bare Tool)

RDG18C-0
(19)
(2)
(0)
(1)
(0)

4.8

22 Reviews

Slyum-Doomer 07/10/2026

Excellent tool, especially sanding and cleaning rust from tools, gates etc, one thing though, try and avoid using router bits for this specific tool as not really made for something that has a 2200 rpm, can fly off. Always use eye protection goggles.

Judi T05/10/2026

Does the job but do not think the product will last as seems too fragile.

Andrew Patrick15/06/2026

Felt very professional and of decent quality

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