Walter HP 4-Inch Combo Grinding and Cutting Wheel

Built for the Grind: Walter HP 4-Inch Wheel

Every welder knows the frustration of constantly switching between a zip wheel and a grinding rock. You cut a tack, then you have to switch wheels to feather it out. With the Walter 08B412 HP wheel, you can stop wasting time changing discs and keep your hood down. This 4-inch wheel is built with a 1/8-inch thickness, which is the perfect "sweet spot" for fabrication work. It is thin enough to slice through angle iron, bolts, and tubing with ease, but it has the beefiness you need to lean into a grind without worrying about the wheel shattering. It’s the ultimate multi-tasker for your 4-inch grinder.

When you are working with steel or stainless, you need an abrasive that bites. The Walter HP series is famous for its aggressive removal rate. It doesn't just rub the metal and heat it up; it rips through it. This makes it ideal for grooving out cracks for repair welds, notching pipe for fit-up, or cleaning up heavy slag and spatter. The wheel runs smooth and balanced, reducing the vibration that tires out your hands by the end of the shift. Because it resists glazing, you won't find yourself pushing harder and harder just to get the wheel to cut—it stays sharp right down to the nub.

The 3/8-inch arbor fits standard small angle grinders perfectly. Whether you are in the shop or out in the field, having a pack of these wheels means you are ready for anything. You can cut a piece of stock to length, deburr the edge, and prep the weld joint all with the same wheel. It’s tough, reliable, and built by Walter, so you know it’s going to last longer than the cheap generic wheels. If you want a wheel that works as hard as you do and helps you turn out professional-looking work faster, load up your grinder with the Walter 08B412.