Angle Grinder Tool-Only: What Else You Need to Get Started

Quick answer

A tool-only angle grinder saves money only if you already own a compatible Kreg 20V battery and charger. If you don't, budget for those first, then add the correct wheel type and safety gear for your material.

Why the tool-only price is not the full cost

The Kreg 20V angle grinder is sold as tool only, meaning no battery or charger in the box. That keeps the upfront price low, but the grinder cannot run until you add a Kreg 20V battery and a charger. If you are new to the platform, those two items are part of the real setup cost.

The grinder accepts wheels up to 5 inches, so you can use common 4 1/2 inch wheels or step up to 5 inch wheels for more reach. Match the wheel to the task: cutting, grinding, or finishing. Using the wrong wheel type is a common and unsafe mistake.

Battery and charger compatibility: what to check before you buy

The grinder is part of the Kreg 20V system. Use only Kreg 20V batteries and chargers. A higher-capacity battery gives longer runtime, which matters for continuous grinding or cutting. A compact battery keeps the tool lighter for overhead work or quick cuts.

If you already own other Kreg 20V tools, you can share batteries and chargers across them. That is the main reason to choose tool-only: you avoid paying for duplicates. If this is your first Kreg 20V tool, buy a starter kit or a battery and charger together so you can use the grinder immediately.

Wheels and guards: match the accessory to the job

The grinder has a tool-free wheel change and a paddle switch, which makes swapping wheels and controlling the tool easier. For cutting metal, use a cut-off wheel rated for the grinder's RPM. For grinding welds or smoothing edges, use a grinding wheel. For finishing, use a flap disc.

Always use the guard that comes with the grinder. Do not remove it for cutting or grinding. Check that the wheel's maximum RPM meets or exceeds the grinder's 9,000 RPM no-load speed. The grinder has six speed settings, so you can slow it down for finishing and run it faster for cutting.

Safety gear is not optional

Angle grinders throw sparks and metal fragments. At minimum, wear safety glasses or a face shield, hearing protection, and gloves. A dust mask is wise when grinding masonry or painted surfaces. Avoid loose clothing and tie back long hair.

The soft start motor helps reduce kickback when the wheel first contacts the material, but it does not replace proper technique. Keep both hands on the tool using the three handle positions, and let the wheel reach full speed before touching the workpiece.

Decision rules for a complete tool-only setup

• Do you already own a Kreg 20V battery and charger?: If yes, buy the tool only and use your existing batteries. If no, buy a Kreg 20V battery and charger at the same time, or choose a kit that includes them. Tool-only only saves money when you already have the platform.
• Which battery capacity fits your work?: Choose a compact battery for light overhead work and quick cuts. Choose a higher-capacity battery for extended grinding or cutting sessions where runtime matters more than weight. Match battery size to the longest continuous task you expect.
• Which wheel type do you need first?: For cutting metal, start with a cut-off wheel. For smoothing welds or edges, start with a grinding wheel. For finishing, add a flap disc. Buy only wheels rated for at least 9,000 RPM and the wheel diameter you plan to use. Buy the wheel for your most common task first, then add others as needed.
• Is your safety gear ready?: Have safety glasses or a face shield, hearing protection, and gloves before the first use. Add a dust mask for masonry or painted surfaces. No first cut without eye and ear protection.

Product facts

• Kreg 20V Ionic Drive™ 4 1/2"- 5" Angle Grinder (Tool Only): Brushless motor with up to 9,000 RPM and six speed settings. Six speeds let you match wheel speed to cutting, grinding, or finishing tasks without overheating the material.

  

• Kreg 20V Ionic Drive™ 4 1/2"- 5" Angle Grinder (Tool Only): Tool-free wheel change and three handle positions. You can swap wheels quickly and hold the grinder comfortably in different orientations for better control.
• Kreg 20V Ionic Drive™ 4 1/2"- 5" Angle Grinder (Tool Only): Paddle-operated on/off switch and soft start. The paddle switch is easier to control with gloves, and soft start reduces the initial jolt when the wheel contacts metal.

Who this setup is for

Best for

• Owners of other Kreg 20V tools who want to add a grinder without duplicate batteries
• DIYers and tradespeople who need a cordless grinder for metal cutting, grinding, and finishing

Not for

• First-time buyers with no Kreg 20V battery or charger, unless they buy those at the same time
• Users who need a grinder for heavy continuous industrial use where corded power is more practical