7″ Pyramid Diamond Cup Wheel

The Inland 7″ Pyramid Diamond Cup Wheel is built for one job and does it aggressively: fast material removal on hard concrete. Its pyramid-style diamond segments tear through tough, dense concrete for heavy stock removal, coating removal, and floor leveling — with wide slots that clear dust and debris and cooling holes that keep the wheel running cool and cutting longer. It mounts on any hand grinder with a 5/8″-11 threaded arbor and is available in 16 or 30 grit with a soft or extra-soft bond made for hard concrete.

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.

Aggressive Grinding Built for Hard Concrete

The 7″ Pyramid Diamond Cup Wheel is built for one thing: removing material fast on tough, hard concrete. Its distinctive pyramid-style segment design packs aggressive diamond into a layout engineered for heavy stock removal, coating removal, and floor leveling — all on a standard hand grinder. When you’re facing hard concrete that wears out ordinary cup wheels, this is the tool that keeps cutting.

The segment pattern isn’t just for looks. The wide slots between segments clear dust and debris as you grind, and the cooling holes through the body keep the wheel running cooler for longer life and steadier performance. The result is an aggressive, efficient cut that holds up to demanding work.

Soft & Extra-Soft Bonds — Made for Hard Concrete

Here’s what makes this wheel right for hard surfaces: it comes in soft and extra-soft bonds. On hard concrete, a softer bond wears at the right rate to keep exposing fresh diamond as you work — so the wheel stays aggressive instead of glazing over and stalling. If you’ve struggled to get a cup wheel to bite on hard concrete, a soft or extra-soft bond is the answer, and this wheel is built around exactly that.

• Soft bond — for hard concrete
• Extra-soft bond — for the hardest concrete, where you need the bond to release even faster

One-Step Grinding & Coating Removal

Because it’s so aggressive, this cup wheel is a strong choice for knocking down thin coatings and grinding the floor in one step — saving you a pass. It’s ideal for:

• Aggressive concrete grinding and stock removal
• Coating, paint, and thin-mastic removal
• Floor leveling and high-spot grinding
• Hard concrete where standard wheels struggle

Specifications

• Use: Wet or dry
• Type: Pyramid-segment diamond cup wheel
• Diameter: 7 in
• Grit: 16 grit (very aggressive) or 30 grit (aggressive)
• Bond: Soft or Extra-Soft (for hard concrete)
• Arbor: 5/8″-11 threaded (fits like our other cup wheels)
• Mounts on: Hand grinders

Frequently Asked Questions

What is the pyramid cup wheel best for? Aggressive grinding and coating removal on hard concrete. Its pyramid segment design removes material fast, making it a strong choice for stock removal, knocking down coatings, and leveling floors in a single step.

What’s the difference between 16 and 30 grit? 16 grit is the most aggressive — the fastest, coarsest cut for maximum material removal. 30 grit is still aggressive but leaves a somewhat finer scratch pattern. Choose 16 for the heaviest removal, 30 for a balance of speed and a cleaner finish.

Why soft and extra-soft bonds? On hard concrete, a softer bond wears at the right rate to keep exposing fresh diamond, so the wheel stays cutting instead of glazing over. Soft bond handles hard concrete; extra-soft is for the very hardest surfaces. (Softer concrete generally calls for a harder bond — give us a call if you’re not sure which fits your floor.)

What does it fit? Hand grinders, with a standard 5/8″-11 threaded arbor — the same mount as our other cup wheels.

Can I use it wet or dry? Yes — it works both wet and dry.

How do I pick the right grit and bond? It depends on your concrete hardness and how aggressive you need to be. Not sure? Call us — we’ll help you match the right grit and bond to your floor and your machine.

Order Your Inland 7″ Pyramid Diamond Cup Wheel Today

Call (815) 941-4800 x 1 or fill out our contact form. See more options on our Cup Wheels page, or browse all our hand grinder tooling.