9" HDII ENDLESS - Cutting + Grinding Wheel

9" HDII – One Wheel to Cut, Grind, and Outlast Them All

You don’t have time for wheels that wear out, explode under pressure, or tap out halfway through a job. The Bad Dog 9" HDII (Handi Disc II) is built for pros who grind harder, cut deeper, and don’t mess around with disposable discs.

This 9-inch diamond grinding and cutting wheel is a beast. With a solid steel core and diamond-coated face and edge, it tears through metal, concrete, tile, stone, brick, and more—without swapping wheels mid-job or dealing with fiber disc blowouts.

✅ Dual-Purpose Design – Cut and grind with one disc; no switching, no slowing down
✅ Diamond-Coated Steel Core – Long-lasting edge that won’t quit under pressure
✅ Grinder Wheel for Metal, Masonry & Tile – Built to slice through it all
✅ Minimal Kickback, Cooler Cuts – More control, cleaner results
✅ Won’t Shatter Under Load – No fiberglass, no flying chunks, no nonsense
✅ Lifetime Guarantee – Break it? We replace it. For life.

Fits all standard grinders with a 7/8" arbor, so you can drop it in and get to work—no adapters, no downtime.

From cutting rebar and grinding welds, to shaping stone or cleaning up concrete, the 9" HDII is your go-to disc when the job demands more than just good enough.

Still swapping wheels for every material? Upgrade to the wheel that actually pulls its weight. The 9" HDII doesn’t flinch, doesn’t shatter, and doesn’t back down.

Looking for something smaller for tight spaces? Check out our best-selling 4.5" HDII – same grit, more control in the palm of your hand.

One wheel. All jobs. No compromises.
Bad Dog 9" HDII – For Workers on the Grind