Makita 9557PB Grinder
- Grinder
- 900 watts
- Corded electric
- 120 volts
- Better rated than 66%
- More reviewed than 85%
A 900 watt corded angle grinder that holds a steady 10000 RPM without battery limits, backed by a 4.7 star rating across more than a thousand reviews.
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How it ranks among the 150 grinders we track
4.7★ across 1,044 Amazon ratings, Bayesian-smoothed toward the category average.
1,044 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon 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
This is a corded electric angle grinder from Makita, drawing 900 watts on a 120 volt line to spin its disc at 10000 RPM. At roughly 14 by 5 by 6 inches, it stays compact for a full size grinder. Over a thousand buyers have rated it 4.7 stars.
Corded tools trade battery swaps for constant power, and this Makita holds a steady 10000 RPM as long as it stays plugged in. The 900 watt motor and 120 volt draw point to a machine built for grinding and cutting metal rather than light detail work. No seller description or attribute list details the disc size, so match it against whatever wheels are already on hand.
- 120 volt corded electric power source
- 900 watt motor rating
- 10000 RPM disc speed
- About 100 bought in the past month
Who it's for
Suited to anyone doing metal fabrication, welding cleanup, or masonry cutting who wants a full time corded grinder rather than a battery model that runs down mid job. Not the pick for someone who needs to work far from an outlet or wants a lighter cordless unit for occasional touch ups.
Strengths and trade-offs
Drawn from this product's published specifications.
- Steady 10000 RPM with no battery drop off
- 900 watt motor for grinding and cutting
- Compact body sized for a standard grinder
- Strong 4.7 star rating over 1000 reviews
- Corded, so reach is limited by cord length
- No disc size listed in the data
- No description or reviews to confirm details
Performance notes
The 900 watt motor at 120 volts pushes the disc to 10000 RPM, a speed aimed at grinding, cutting, and surface prep on metal. Because it is corded, output does not fade the way a battery powered grinder can under load. The listed dimensions, about 14 by 5 by 6 inches, put it in the size range of a standard angle grinder body.
Specifications
| Brand | MAKITA |
|---|---|
| Model | 9557PB |
| Motor Power | 900 watts |
| Power Source | Corded electric |
| Voltage | 120 volts |
| Dimensions | 14 × 5 × 6 inches |
| Speed | 10000 rpm |
Other MAKITA grinders
How it compares
This product against the closest alternatives we track in grinders.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Makita 9557PB GrinderThis product | 4.7 / 5 | 1,044 | 4.2 / 5 |
| DEWALT DCG413B GrinderDeWalt | 4.8 / 5 | 9,600 | 4.6 / 5 |
| Milwaukee 2880-20 GrinderMILWAUKEE | 4.8 / 5 | 2,400 | 4.5 / 5 |
| AVID MW590 GrinderAVID | 4.5 / 5 | 6,100 | 4.4 / 5 |
| CRAFTSMAN CMCG400B GrinderCraftsman | 4.7 / 5 | 2,900 | 4.4 / 5 |
Similar grinders from other brands
Questions about the MAKITA 9557PB
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the motor power on the Makita 9557PB grinder?
It runs a 900 watt motor on a 120 volt corded connection.
How fast does the Makita 9557PB spin?
The listed speed is 10000 RPM.
Does the Makita 9557PB run on battery?
No, it is corded electric, so it needs a wall outlet rather than a battery pack.