SEESII DG21 Pro Cordless Right Angle Die Grinder Kit
- Maximum Rotational Speed: 24500 rpm
- Power Source: Battery
- Manufacturer Warranty Description: 3 Year Manufacturer
- Voltage: 18 volts
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light, fast spinning 18 volt cordless grinder built more for control and detail work than for heavy material removal.
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ASIN: B0G4R4FDQ8Model: DG21 ProCategory: Power Grinders
Overview
The SEESII DG21 Pro is a cordless grinder that runs on an 18 volt battery, weighs 2.5 pounds, and is rated for a top speed of 24,500 RPM. That combination of light weight and high rated speed points to a tool meant for detail grinding, cutting or polishing rather than heavy stock removal.
At 24,500 RPM, the DG21 Pro spins considerably faster than a typical corded angle grinder, which usually tops out well under half that figure. Paired with an 18 volt battery and a 2.5 pound body, it reads as a compact tool built for maneuverability over sheer grinding force. The listing does not state disc or wheel diameter, so which accessories it accepts is not confirmed.
- Model DG21 Pro
- 18 volt battery power
Who it's for
This suits users doing detail work, small cuts or finishing where a light, fast spinning cordless tool is easier to control than a full size angle grinder. It is a weaker fit for anyone needing to remove a lot of material quickly, since disc size and grinding capacity are not published.
Pros and cons
- Light at 2.5 pounds for one handed control
- Rated 24,500 RPM for fast cutting or grinding
- Cordless on an 18 volt battery
- No disc or wheel diameter listed
- No stated battery runtime
- Not built for heavy stock removal at this weight
Performance notes
An 18 volt battery driving a 2.5 pound body to 24,500 RPM suggests a tool tuned for speed and control rather than torque, similar to a die grinder or rotary tool more than a heavy angle grinder. No disc diameter, arbor size or runtime is listed, so accessory compatibility and battery life are not confirmed by the spec sheet.
Specifications
| Brand | SEESII |
|---|---|
| Model | DG21 Pro |
| Dimensions & fit | |
| Item Weight | 2.5 poundslower than 61% of 107 power grinders |
| Capacity & performance | |
| Maximum Rotational Speed | 24500 rpmhigher than 83% of 122 power grinders |
| Minimum Speed | 10000 rpm |
| Power & efficiency | |
| Power Source | Battery |
| Voltage | 18 voltslower than 77% of 103 power grinders |
| Power Rating | 0.4 hp |
| Construction & materials | |
| Color | Blue |
| Included components | |
| Included Components | 1x Wrench; 1x Storage Case, 1× Cordless Right Angle Die Grinder; 1× 1/4" Collet, 2× 2000mAh Batteries; 1× Charger, 6x 2“ Flap Discs,10x 2“ Sanding Discs, 3x 2“ Non-Woven Abrasive Wheels, 3x 2“ Diamond Abrasive Discs, 1x 2“ Wool Polishing Wheel |
| Warranty & support | |
| Manufacturer Warranty Description | 3 Year Manufacturer |
| Other details | |
| Number Of Batteries | 2 D batteries required. (included) |
| Style Name | Industrial |
| Other Special Features Of The Product | Cordless, Ergonomic Grip, Keyless Chuck, Lock Button, Variable Speed |
| Recommended Uses For Product | Deburring, Engraving, Grinding, Polishing, Sanding |
Closest rivals on specs
DEWALT DCG426B 20V MAX Variable Speed Die Grinder- Voltage 18 vs 20 volts (-10%)
- Item Weight 2.5 vs 3 pounds (-17%)
Makita XDG02Z 18V LXT Compact Die Grinder 1/4 Inch- Item Weight 2.5 vs 3 pounds (-17%)
Astro Pneumatic 219 ONYX 3-Piece Die Grinder Kit- Item Weight 2.5 vs 3.2 pounds (-22%)
Frequently asked questions
What voltage battery does the DG21 Pro use?
It runs on an 18 volt battery according to the listing.
How fast does it spin?
It is rated for a top speed of 24,500 RPM.
How much does it weigh?
The DG21 Pro weighs 2.5 pounds.