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Flush-Cut Angle Grinder Cutoff Wheels for Hard Metal
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Side View |
Made of ceramic alumina, these wheels last 10 times longer than standard cutoff wheels when cutting hard metal, such as tool steel. They’re reinforced with two layers of fiberglass mesh. These wheels, also known as Type 27, raised hub, and depressed-center cutoff wheels, outperform Type 1 wheels when making flush cuts.
Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.
Grinding Wheel | Material | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thk. | Arbor Hole Size | Arbor Hole Thread Size | Max. Rotation Speed, rpm | Designation | Shape | Abrasive | Reinforcement | For Use On | Grit | Each | |||
4 1/2" Diameter | |||||||||||||
| 3/64" | 7/8" | — | 13,300 | Type 27 | Raised Hub | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 4745N11 | 00000 | ||
| 1/16" | — | 5/8"-11 | 13,580 | Type 27 | Raised Hub | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 4745N21 | 00000 | ||
| 1/16" | 7/8" | — | 13,580 | Type 27 | Raised Hub | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 4745N22 | 00000 | ||
5" Diameter | |||||||||||||
| 3/64" | 7/8" | — | 12,200 | Type 27 | Raised Hub | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 4745N12 | 0000 | ||
| 1/16" | 7/8" | — | 12,225 | Type 27 | Raised Hub | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 4745N23 | 00000 | ||
6" Diameter | |||||||||||||
| 3/64" | 7/8" | — | 10,200 | Type 27 | Raised Hub | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 4745N13 | 00000 | ||
| 1/16" | 7/8" | — | 10,185 | Type 27 | Raised Hub | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 4745N24 | 00000 | ||
Straight Grinder Cutoff Wheels for Hard Metal
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Side View |
The combination of ceramic alumina and zirconia alumina in these wheels lasts up to ten times longer than aluminum oxide when cutting hard metal such as Inconel nickel, Hastelloy nickel, and tool steel. Wheels are reinforced with a layer of fiberglass mesh. Choose coarser grit for fast cuts; choose finer grit for smooth cuts.
Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.
Grinding Wheel | Material | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thk. | Arbor Hole Size | Max. Rotation Speed, rpm | Designation | Shape | Abrasive | Reinforcement | For Use On | Grit | Each | |||
3" Diameter | ||||||||||||
| 0.035" | 1/4" | 25,465 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 2499A31 | 00000 | ||
| 0.035" | 3/8" | 25,465 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 2499A32 | 0000 | ||
| 1/16" | 1/4" | 25,465 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 2499A35 | 0000 | ||
| 1/16" | 3/8" | 25,465 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 2499A36 | 0000 | ||
| 1/8" | 3/8" | 25,465 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 2499A38 | 0000 | ||
4" Diameter | ||||||||||||
| 0.035" | 3/8" | 19,100 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 2499A34 | 00000 | ||
| 0.045" | 1/4" | 22,000 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 2499A33 | 0000 | ||
| 1/16" | 3/8" | 19,100 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 2499A41 | 00000 | ||
| 1/8" | 3/8" | 19,100 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 2499A43 | 00000 | ||
Angle Grinder Cutoff Wheels for Hard Metal
 | |
Side View |
Made of ceramic alumina or a combination of ceramic alumina and zirconia alumina, these wheels last up to ten times longer than standard cutoff wheels when cutting hard metal such as Inconel nickel, Hastelloy nickel, and tool steel. Wheels are reinforced with two layers of fiberglass mesh.
Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.
Grinding Wheel | Material | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thk. | Arbor Hole Size | Max. Rotation Speed, rpm | Designation | Shape | Abrasive | Reinforcement | For Use On | Grit | Each | |||
4 1/2" Diameter | ||||||||||||
| 0.045" | 7/8" | 13,580 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 2499A51 | 00000 | ||
| 1/16" | 7/8" | 13,580 | Type 1 | Straight | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 36 | 2499A21 | 0000 | ||
5" Diameter | ||||||||||||
| 0.045" | 7/8" | 12,225 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 46 | 2499A52 | 0000 | ||
| 1/16" | 7/8" | 12,200 | Type 1 | Straight | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 46 | 2499A22 | 0000 | ||
6" Diameter | ||||||||||||
| 1/16" | 7/8" | 10,185 | Type 1 | Straight | Ceramic Alumina/Zirconia Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 46 | 2499A54 | 0000 | ||
7" Diameter | ||||||||||||
| 3/64" | 5/8" | 8,500 | Type 1 | Straight | Ceramic Alumina | Fiberglass Mesh | Hastelloy Nickel, Inconel Nickel, Tool Steel | 60 | 2499A23 | 0000 | ||
Bench and Surface Grinder Cutoff Wheels for Hard Metal
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Side View |
Made with boron nitride, second only in hardness to diamond, these wheels are highly wear resistant, so they easily cut steel with a Rockwell hardness of C50 or greater, including alloy steel, A2, D2, and T15 tool steel. While these wheels are not as hard as wheels made with diamond, they dissipate heat better.
Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.
Grinding Wheel | Material | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thk. | Arbor Hole Size | Max. Rotation Speed, rpm | Designation | Shape | Abrasive | Body | For Use On | Grit | Each | |||
6" Diameter | ||||||||||||
| 1/32" | 1 1/4" | 6,045 | Type 1 | Straight | Boron Nitride | Steel | Hastelloy Nickel, Inconel Nickel, Tool Steel | 100 | 4734N11 | 0000000 | ||
| 3/64" | 1 1/4" | 6,045 | Type 1 | Straight | Boron Nitride | Steel | Hastelloy Nickel, Inconel Nickel, Tool Steel | 100 | 4734N12 | 000000 | ||
8" Diameter | ||||||||||||
| 3/64" | 1 1/4" | 4,535 | Type 1 | Straight | Boron Nitride | Steel | Hastelloy Nickel, Inconel Nickel, Tool Steel | 100 | 4734N13 | 000000 | ||
10" Diameter | ||||||||||||
| 3/64" | 1 1/4" | 3,625 | Type 1 | Straight | Boron Nitride | Steel | Hastelloy Nickel, Inconel Nickel, Tool Steel | 100 | 4734N14 | 000000 | ||
