Makita GA7021 Angle Grinder 7 Inch
- Wattage: 1800 watts
- Maximum Rotational Speed: 6000 rpm
- Power Source: Corded Electric
- Material Type: Plastic
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
The GA7021 delivers what a 7 inch corded grinder is meant for: continuous power on heavy grinding and cutting work.
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ASIN: B000I6QWQMModel: GA7021Category: Power Grinders
Overview
Makita's GA7021 pairs a 7 inch wheel with an 1800 watt corded motor and a 6000 RPM no-load speed, weighing 15.4 pounds. It is built for continuous grinding, cutting, and surface work rather than light occasional use.
7 inch grinders sit at the larger end of the angle grinder range, used for cutting rebar, grinding welds, and surface prep on masonry or metal where a smaller 4.5 inch grinder would be underpowered. The 1800 watt motor and 6000 RPM speed are matched to that size wheel, and the corded design trades battery limits for continuous run time on longer jobs.
- 7 inch wheel capacity
- 1800 watt corded motor
- 6000 RPM no-load speed
- 15.4 pound weight
Who it's for
Tradespeople and serious DIY users doing heavy metal or masonry work such as cutting rebar, grinding welds, or surface prep, where a 7 inch wheel and sustained corded power are needed.
Pros and cons
- 1800 watt motor for sustained heavy-duty grinding
- 7 inch wheel capacity for larger jobs
- Corded power avoids battery runtime limits
- 15.4 pounds is heavy for overhead or one-handed use
- Corded design limits mobility compared to battery grinders
- No stated dust or kickback protection features
Performance notes
The 1800 watt motor pairs with a 6000 RPM no-load speed to keep torque up under load on a 7 inch wheel, which is the size point where corded power matters most since battery tools struggle to sustain that combination. At 15.4 pounds it is heavier than compact grinders, so extended overhead use will tire the arms faster.
Specifications
| Brand | MAKITA |
|---|---|
| Model | GA7021 |
| Dimensions & fit | |
| Item Weight | 15.4 poundshigher than 96% of 107 power grinders |
| Item Dimensions L X W X H | 21.2 × 9.2 × 7 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 6000 rpmlower than 93% of 122 power grinders |
| Power & efficiency | |
| Wattage | 1800 wattshigher than 96% of 55 power grinders |
| Power Source | Corded Electric |
| Voltage | 120 voltshigher than 52% of 103 power grinders |
| Construction & materials | |
| Material Type | Plastic |
| Color | Teal |
| Included components | |
| Unit Count | 1 |
| Included Components | Grinding Wheel, “tool-Less” Wheel Guard, Side Handle, Inner Flange, Lock-Nut And Wrench |
| Warranty & support | |
| Manufacturer Warranty Description | 1 year limited warranty |
| Other details | |
| Style Name | Music |
| Item Type Name | Makita GA7021 7" Angle Grinder, With AC/DC Switch |
Closest rivals on specs
DEWALT DW840 Corded Angle Grinder 7 Inch- Wattage 1800 vs 1560 watts (+15%)
- Maximum Rotational Speed 6000 vs 8000 rpm (-25%)
- Item Weight 15.4 vs 12.05 pounds (+28%)
DEWALT DCG412P2 20V MAX Angle Grinder Kit 4-1/2 Inch- Voltage 120 vs 20 volts (+500%)
- Maximum Rotational Speed 6000 vs 8000 rpm (-25%)
Variable Speed Brushless Angle Grinder for DeWalt 20V- Voltage 120 vs 20 volts (+500%)
- Maximum Rotational Speed 6000 vs 8500 rpm (-29%)
Frequently asked questions
What size wheel does the Makita GA7021 use?
7 inches.
Is the Makita GA7021 corded or cordless?
Corded electric, running on 120 volts.
How much does the Makita GA7021 weigh?
15.4 pounds.