3 Arrow Corner Tool

The Inland 3 Arrow is a triangular diamond corner tool for oscillating multi-tools — built to grind concrete in the corners, edges, and detail areas a large grinder can’t reach. Its three arrow-pattern diamond segments cut aggressively, making quick work of corner grinding and material removal in tight spaces. Mounts directly to your oscillating tool for a secure connection. Available in 16 & 30 grit, medium bond.

Call for pricing and availability, or request a quote — you’ll talk to a real surface-prep expert, not a call center — fast answers and real recommendations.

Key Features

• For concrete corners, edges, and detail areas
• Triangular diamond corner tool for oscillating multi-tools
• Three arrow-pattern segments — aggressive corner grinding
• Direct mount to your oscillating tool
• 16 & 30 Grit – Medium Bond

Why the 3 Arrow?

The arrow-pattern diamond segments are designed for aggressive material removal in corners and along edges — the tight spots where your main grinder can’t reach. When you need to grind corners and detail areas to match the rest of the floor, the 3 Arrow gets into those spaces and cuts fast.

Corner Grinding Tools — Which Do You Need?

We offer a few tools for corner and edge work on oscillating multi-tools:

• 3 Arrow Corner Tool (this one) — triangular tool with aggressive arrow-pattern diamond segments for corner grinding
• Metal Dot Corner Wheel — metal bond triangle rasp for corner grinding, in 30/60/120 grit
• Corner Adapter + Corner Pads — velcro adapter and resin pads for corner polishing (50–800 grit)

Grinding corners aggressively? The 3 Arrow or Metal Dot Wheel. Polishing corners to a finish? The Corner Adapter and pads. Not sure? Call us and we’ll set you up.

What It’s For

• Aggressive concrete corner grinding
• Edge and detail work a large grinder can’t reach
• Material removal in tight spaces

Fits These Oscillating Tools

Universal fit to suit DeWalt®, Dremel®, Fein®, Hart®, Makita®, Milwaukee®, Porter-Cable®, Ridgid®, Rockwell®, and more.

A note on Starlock tools: these grinding plates are not directly compatible with Starlock tools. Aftermarket adaptors are available that allow them to be used with Starlock tools — however, we do not offer that aftermarket adaptor.

Frequently Asked Questions

What’s it for? Aggressive grinding of concrete corners, edges, and detail areas with an oscillating multi-tool.

How does it mount? Direct mount to your oscillating tool.

How’s it different from the Metal Dot Corner Wheel? Both grind corners; the 3 Arrow has an arrow-pattern segment design, the Metal Dot is a metal rasp in 30/60/120 grit.

Order Your Inland Metal Dot Corner Wheel Today

Call (815) 941-4800 x 1 or fill out our contact form. See our hand grinder accessories, diamond tooling, and surface prep tooling.

Item #’s:

30 Grit – 913010016
60 Grit – 913010030