Angle grinders are essential for cutting metal, grinding welds, sharpening blades, and even prepping masonry. Cordless models offer unmatched portability, making them ideal for job sites, garages, and DIY projects. And yes—you can get serious performance under $100.
We’ve selected the top 3 cordless angle grinders under $100 that deliver power, durability, and value. Whether you’re a weekend warrior or a budget-conscious pro, these picks will help you tackle tough materials without overspending.
Top 3 Cordless Angle Grinders Under $100 Compared
| Model | Voltage | RPM | Wheel Size | Battery Included | Best For |
|---|---|---|---|---|---|
| DEWALT DCG412B | 20V | 8,000 | 4½” | Tool only | Heavy-duty cutting & grinding |
| Bosch GWS18V-45 | 18V | 10,000 | 4½” | Tool only | Compact metalwork & masonry |
| CRAFTSMAN CMCG400B | 20V | 8,500 | 4½” | Tool only | DIY projects & home repairs |
Tool Breakdown & Reviews
🥇 DEWALT 20V MAX Angle Grinder (DCG412B)
The DEWALT DCG412B is a rugged cordless grinder built for demanding tasks. With an 8,000 RPM motor, it’s perfect for cutting rebar, grinding welds, and slicing through steel. The quick-change wheel release allows tool-free disc swaps, and the 2-position side handle improves control during extended use.
It’s part of DEWALT’s 20V MAX system, so if you already own compatible batteries, this tool is a no-brainer. While it’s sold as a tool-only unit, its performance rivals corded grinders in this price range.
Top Features:
- 8,000 RPM high-power motor
- Quick-change wheel release
- 2-position side handle for control
- Compatible with DEWALT 20V MAX batteries
Reasons to Buy:
- Excellent for heavy-duty tasks
- Durable and jobsite-ready
- Trusted DEWALT build quality
🥈 Bosch 18V Cordless Angle Grinder (GWS18V-45)
Bosch’s GWS18V-45 is a compact and efficient grinder with a 10,000 RPM motor, making it one of the fastest in its class. It’s designed for precision metalwork, tile cutting, and surface prep. The slim grip design improves ergonomics, and the tool-free guard adjustment adds convenience.
This is a tool-only model, ideal for users already in the Bosch 18V ecosystem. It’s lightweight, powerful, and built for control—especially in tight spaces.
Top Features:
- 10,000 RPM for fast cutting
- Slim grip for comfort
- Tool-free guard adjustment
- Bosch reliability and precision
Reasons to Buy:
- Great for metal and tile work
- Lightweight and easy to maneuver
- Ideal for Bosch users
🥉 CRAFTSMAN V20 Cordless Angle Grinder (CMCG400B)
The CRAFTSMAN CMCG400B offers solid performance at a budget-friendly price. With 8,500 RPM, it’s great for grinding, cutting, and sharpening around the house or workshop. The 3-position handle improves control, and the spindle lock makes wheel changes quick and easy.
It’s part of the V20 system, so if you already own CRAFTSMAN batteries, this grinder is a smart addition. While not built for industrial use, it’s perfect for DIYers and homeowners.
Top Features:
- 8,500 RPM motor
- 3-position side handle
- Spindle lock for easy wheel changes
- Compatible with CRAFTSMAN V20 batteries
Reasons to Buy:
- Great for home and garage use
- Comfortable and easy to handle
- Affordable entry into cordless grinding
Buyer’s Tips: What to Look for in a Budget Angle Grinder
When choosing a cordless angle grinder under $100, consider:
- RPM rating: Higher RPM = faster cutting and grinding
- Wheel size: 4½” is standard and versatile
- Battery compatibility: Tool-only models are ideal if you already own matching batteries
- Ergonomics: Slim grips and adjustable handles improve control
- Safety features: Look for spindle locks and guard adjustments
Final Verdict
For the best all-around grinder under $100, the DEWALT DCG412B delivers serious power and durability. For speed and precision, the Bosch GWS18V-45 is a top performer. And for budget-conscious DIYers, the CRAFTSMAN CMCG400B offers great value and usability.
