1.25″ HDII – ENDLESS Cutting + Grinding Wheel

$49.95 $32.47

(2 customer reviews)

Now in a new 1.25″ diameter with the same versatility of its bigger brothers.


  • Small size allows access to the tightest spaces.
  • Cut, Sand, and Grind with the same wheel.
  • Diamond is applied to the surface and edges for ultimate versatility.
  • Use on almost any material from Masonry to Metal, PVC to Porcelain.
  • Covered in 46 grit diamond for ultimate wear resistance
  • Safe! Steel core means the HDII exploding like a fiberglass wheel
  • Lifetime guarantee: Wear out or damage the HDII and we’ll replace it.
  • 1/8″ Arbor hole designed to fit any rotary tool (DremelTM, Rotosaw TM, etc.)

Use 1.25″ HDII on Rotary Tool – Not Included



The heavy diamond-coated HDII is the ultimate cutting + grinding wheel. Put this wheel up against almost any material to cut, sand, or grind its way through. At 10 on the Mohs Hardness Scale Diamond wins every time.

Use on Steel, Aluminum, Granite, Porcelain, Concrete, even soft materials like PVC and plastic without loading up the wheel. Cut Rebar in Concrete without trashing your metal blade on the concrete. Easily chase cracks in Asphalt. Even grind Abrasive Resistant (AR) Steel.

More than anything, the HDII is designed to be safe. The steel core won't shatter and explode like conventional fiberglass wheels even if it binds up.

1.25 HDII Cutting Rush


1.25 HDII Brick


1.25 HDII Sharpening



HDII Customer Reviews:

"This thing cuts everything, it’s one bad blade, and it’s tougher than nails!"

- Larry F.

"One of those rare products these days that performs exactly as advertised! Thanks Bad Dog Tools!!!

- Mike T.

"This is a great product. I don’t know how I could ever get along without it. So many projects, so many uses- AWESOME!"

- Jim G. 

Lifetime Guarantee Badge


Dulled or Damaged? We'll Replace it!

$10 Flat Rate Shipping Badge


$10 Flat Rate Shipping in the Continental United States.

60 Day Money Back Guarantee Badge (some restrictions)


Don't love your HDII? Return it in 60 days for your money back.


Through new manufacturing technology and advances in material science, we’ve put together a blade that is a worthy successor to the original Handi Disc Flexible Abrasive Wheel. The HDII can tackle a host of material removal operations. Just like the original Handi Disc, it cuts, sands, and grinds several materials including metal, masonry, plastic, stone, and more! But the new HDII is a rigid-coated 18 gauge steel blade available in six different diameters so you always have the right wheel for your application. The proprietary abrasive mix, which includes two ounces of synthetic diamond, coats the blade in a unique pattern designed for optimum wear. The HDII can even be used without water! It's an awesome addition to your toolbox whether you’re a farmer, contractor, plumber, electrician, auto or motorcycle enthusiast, or a DIY’ing homeowner.

Will the HDII fit my grinder?

The industry standard for grinders is as follows:

Rotary Tools (Dremel TM) - 1/8"

3" - 1/4"

4" - 5/8"

4-1/2", 6", 7" - 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. 

What won't the HDII cut?

Wood - It will shape wood well but burns when cutting.

Glass - The HDII is too aggressive and leaves a jagged edge.

How long does the HDII last?

Nothing lasts forever but we Guarantee the HDII for LIFE!

What if I break the HDII?

We'll replace it - even if it's your fault!  Here's a link to the details of our Lifetime Guarantee.

How do I clean the HDII?

Sometime 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 good as new.

2 reviews for 1.25″ HDII – ENDLESS Cutting + Grinding Wheel

  1. Scott C.

    Great tool for getting into little spaces! Cuts clean and works well

  2. Andy

    I was lucky enough to buy their one Demo Disc while at 2019 SEMA show. I have now used it several times and it’s worth every penny. Metal, ceramics etc, it cuts or sands through everything. So good I am now buying another for my 2nd location. The only thing missing is the Mandrel / Arbor bit you will need to fit this bad boy. I needed to buy a separate 1/8″ screw with 5/16″ base & cap, I wish it was included.

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