5-Inch Type 11 Grinding Cup Stone with Threaded Hub

Tackle Tough Grinding Jobs Fast

When you have heavy welds to grind down or rough surfaces to smooth out, you need an abrasive that can take a beating. The 5" HP Cup Wheel by Walter is built for the toughest grinding applications in the shop. Known as a Type 11 wheel, its flaring cup shape gives you a wide, flat surface area to attack the work, making it perfect for leveling off high spots, cleaning up castings, or prepping heavy steel plates. Unlike standard grinding discs that cut with the edge or a small portion of the face, this cup wheel puts more abrasive in contact with the metal, speeding up the removal of stock.

Built for Safety and Convenience

One of the biggest hassles with cup wheels can be mounting them correctly. This wheel solves that with a built-in 5/8"-11 threaded hub. You don't need to hunt for a flange nut or worry about centering the wheel; just spin it directly onto your angle grinder's spindle and you are good to go. This secure connection also improves safety, as does the heavy-duty steel backing. Walter has designed this wheel with a deeply anchored steel hub that wraps around the base, ensuring the abrasive stays intact even when you are leaning into the grind.

This wheel is a true workhorse for the welder who deals with multiple materials. It is formulated to grind steel and stainless steel effectively, but it is also tough enough for cast iron and concrete. Whether you are cleaning up a messy repair job, smoothing out a concrete pad, or deburring a fresh cut on a steel beam, this cup wheel provides the aggressive bite and long life you expect from high-performance abrasives. Stop wasting time with undersized wheels on big jobs—switch to the HP Cup Wheel for serious material removal.