Bad Dog 7″ HDII – More Speed. Less Effort. Same Lifetime Guarantee.
When you need to move fast and grind hard, the 7" Bad Dog HDII gets it done. With a larger cutting surface and 46 grit diamond coating on both the face and edge, this wheel lets you cut, sand, and grind more material in less time—without switching tools or changing wheels.
Designed for heavy-duty applications, the 7" HDII is ideal for anyone working with masonry, metal, PVC, porcelain, tile, wood, and more. The larger diameter not only covers more surface area per pass, it also reduces heat buildup and wear—making your job faster and your wheel last longer.
Thanks to its solid steel core, the 7" HDII is safer than traditional fiberglass wheels, especially if it binds or twists mid-cut. And like every wheel in the HDII line, it’s backed by our Bad Dog Lifetime Guarantee—wear it out or break it, and we’ll replace it. For life.
It’s also one of the most versatile wheels we make. Mount it on a 7" angle grinder, circular saw, or even a bench grinder to turn your everyday tools into high-performance cutting machines.
✅ Large 7" Diameter – Faster cutting, wider grinding area
✅ Cut, Sand & Grind – One wheel does it all
✅ Diamond-Coated Face & Edge – Maximum cutting angles and versatility
✅ Works on Nearly Any Material – Masonry, metal, porcelain, PVC, wood, and more
✅ Steel Core = Safety – No shattering or explosions under load
✅ Mounts to Multiple Tools – Fits most 7" angle grinders, circular saws & bench grinders
✅ Arbor Options: 1/2" or 5/8" – Choose the one that fits your gear
✅ Lifetime Guarantee – We replace it if you break it. No fine print.
Note: Power tools not included. Use appropriate safety gear and secure your workpiece.
Absolutely. The industry standard for grinders is as follows: Rotary Tools (i.e. Dremel TM) - 1/8" 3" Cut off tools and Die Grinder - 1/4" & 3/8” 4" Angle Grinder - 5/8" 4-1/2", 5”, 6", 7" Angle Grinder - 7/8" arbor flange for a 5/8" coarse arbor shaft At Bad Dog, we find that an HDII with a 7/8" arbor flange runs truest because it is a more precise fit. The 4-1/2" and 6" Flange wheel use the 5/8" Coarse thread which is standard on ALL grinders. Call us at 800.252.1330 if you have any questions.
Wood: It will shape wood well but burns when cutting. Glass: The HDII is too aggressive and leaves a jagged edge.
Nothing lasts forever but we Guarantee the HDII for LIFE! If you ever dull or damage your HDII return it to us and we will repair or replace it. For full details see our Lifetime Guarantee page.
We'll replace it - even if it's your fault! Here's a link to the details of our Lifetime Guarantee.
Sometimes when cutting softer metals like aluminum the HDII will "gum" up. If this happens to you, simply run your HDII through a concrete block and it will be as good as new.
As safe as they get! Cut-off wheels can be some of the most dangerous tools in a shop. We are not telling you that you don’t need to be wearing safety when using our wheel, however, the 46 diamond grit is embedded on a hard steel plate to ensure that the wheel will not fly apart on you.
Dull or damage our tools and we will repair or replace them.
Economical Flat Rate Shipping for orders under $50 in the USA. Some exclusions apply.
Don’t love your Bad Dog Tools? Return them in 60 days for your money back.
