DEWALT DWMT70783 Grinder
- Grinder
- Corded electric
- 8 ounces
- 120 volts
- More reviewed than 79%
At 0.5 pounds and 25000 RPM, this DEWALT is built for precision detail grinding rather than heavy stock removal, and its 4.6 star rating over 747 reviews backs that up.
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How it ranks among the 150 grinders we track
4.6★ across 747 Amazon ratings, Bayesian-smoothed toward the category average.
747 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 150 grinders we track - how the scorecard works · full grinders data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
At 0.5 pounds and 25000 RPM, the DEWALT DWMT70783 is sized as a compact, handheld die grinder rather than a bench or angle grinder. It runs on 120 volts corded electric power and measures 7 by 3.2 by 2.3 inches.
The small footprint and light weight point to a die grinder built for detail work such as deburring, polishing, or grinding in tight spaces, not heavy stock removal. DEWALT has not published the collet size or included accessories in this listing.
- 25000 RPM motor speed
- 0.5 pound weight
- 7 x 3.2 x 2.3 inch footprint
- 120 volt corded electric power
Who it's for
Users needing a compact corded grinder for detail metalwork, deburring, or small polishing jobs in tight spots. Not intended for heavy grinding or cutting tasks that call for a full size angle grinder.
Strengths and trade-offs
Drawn from this product's published specifications.
- Very light at 0.5 pounds
- High 25000 RPM speed
- Compact size for tight spaces
- 4.6 star rating over 747 reviews
- Corded, not battery powered
- Collet size not published
- Not suited to heavy stock removal
Performance notes
A high RPM paired with a light, compact body is the signature of a die grinder, built to spin small bits or burrs fast for control in tight spaces rather than to remove large amounts of material quickly. Running on a 120 volt cord means steady power without battery runtime to manage, at the cost of being tethered to an outlet.
Specifications
| Brand | DeWalt |
|---|---|
| Model | DWMT70783 |
| Power Source | Corded electric |
| Item Weight | 8 ounces |
| Voltage | 120 volts |
| Dimensions | 7 × 3.2 × 2.3 inches |
| Speed | 25000 rpm |
Other DeWalt grinders
How it compares
This product against the closest alternatives we track in grinders.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| DEWALT DWMT70783 GrinderThis product | 4.6 / 5 | 747 | 3.8 / 5 |
| Milwaukee 2880-20 GrinderMILWAUKEE | 4.8 / 5 | 2,400 | 4.5 / 5 |
| AVID MW590 GrinderAVID | 4.5 / 5 | 6,100 | 4.4 / 5 |
| Makita 9557PBX1 GrinderMAKITA | 4.8 / 5 | 3,960 | 4.4 / 5 |
| CRAFTSMAN CMCG400B GrinderCraftsman | 4.7 / 5 | 2,900 | 4.4 / 5 |
Similar grinders from other brands
Questions about the DeWalt DWMT70783
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is the DWMT70783 a full size angle grinder?
No, its 0.5 pound weight and small footprint point to a compact die grinder for detail work.
Does it run on battery?
No, it is corded electric at 120 volts.
What speed does it spin at?
25000 RPM.