Worx WX812L.9 20V Power Share Brushless Angle Grinder
- Maximum Rotational Speed: 8500 rpm
- Power Source: Battery
- Material Type: Metal
- Voltage: 20 volts
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Spins at 8500 RPM on Worx's cordless 20V platform, sized for compact, occasional grinding and cutting work.
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ASIN: B08DCB53R8Model: WX812L.9Category: Power Grinders
Overview
The Worx WX812L.9 is a cordless 20 volt angle grinder spinning at 8500 RPM and weighing 2.59 kilograms, measuring about 5 by 5 by 13 inches.
8500 RPM sits within the typical range for angle grinders cutting or grinding metal and masonry discs. Running on Worx's 20V battery platform trades a cord for battery-dependent runtime, and at roughly 13 inches long it is sized like a standard compact grinder rather than a bulky one.
- 8500 RPM speed
- 20V battery powered
- 2.59 kilogram weight
- 5 x 5 x 13 inch size
Who it's for
Makes sense for DIYers and light-duty users wanting a cordless 20V grinder for occasional cutting or grinding jobs. Shop use needing sustained, all-day output asks more of a tool than this is built for.
Pros and cons
- Cordless 20V mobility
- 8500 RPM cutting and grinding speed
- Compact at about 13 inches long
- Battery runtime not specified
- At 2.59 kilograms, on the heavier side for a cordless grinder
Performance notes
Running on the 20V battery platform gives cord-free mobility, though cordless grinders generally deliver shorter sustained run time than corded models at comparable RPM. 8500 RPM falls within the usual range for cutting and grinding discs on metal or masonry.
Specifications
| Brand | WORX |
|---|---|
| Model | WX812L.9 |
| Dimensions & fit | |
| Item Weight | 5.71 poundshigher than 81% of 107 power grinders |
| Item Dimensions L X W X H | 5 × 5 × 13 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 8500 rpmlower than 81% of 122 power grinders |
| Power & efficiency | |
| Power Source | Battery |
| Voltage | 20 voltslower than 65% of 103 power grinders |
| Construction & materials | |
| Material Type | Metal |
| Color | Grey,black |
| Included components | |
| Unit Count | 1 |
| Included Components | Auxiliary Handle, Metal Grinding Disc, And A Spanner Wrench |
| Other details | |
| Style Name | 20V Battery + Charger Sold Separately |
| Item Type Name | Worx WX812L.9 20V Power Share Brushless 4-1/2" Angle Grinder, Bare Tool Only |
Closest rivals on specs
Ryobi R18AG-0 One+ Cordless Angle Grinder- Voltage 20 vs 18 volts (+11%)
Frequently asked questions
What voltage does the WX812L.9 run on?
20 volts.
How fast does it spin?
8500 RPM.
How much does it weigh?
2.59 kilograms.