
Bonded Abrasives
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4-1/2" x .040 x 7/8" T1 Premium Thin Cut-off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$20.88$20.88 - $20.88Current price $20.88| /4.9 / 5.0
712 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X .040 X 7/8" T1 PREMIUM THIN CUT-OFF WHEEL - 25 PACK 4-1/2" X .040 X 7/8" T1...
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6" x .045 x 7/8" T1 Premium Thin Cut-Off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$27.29$27.29 - $27.29Current price $27.29| /4.9 / 5.0
374 Reviews
Product Specification Shipping Refund Product Specification 6" X .045 X 7/8" T1 PREMIUM THIN CUT-OFF WHEEL - 25 PACK 6" X .045 X 7/8" T1 Premium...
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4-1/2" x 1/4" x 7/8" T27 Depressed Center Grinding Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$28.34$28.34 - $28.34Current price $28.34| /4.9 / 5.0
116 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X 1/4" X 7/8" T27 DEPRESSED CENTER GRINDING WHEEL - 25 PACK 4-1/2" x 1/4" x 7...
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5" x .045 x 7/8" T1 Premium Thin Cut-Off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$24.14$24.14 - $24.14Current price $24.14| /4.9 / 5.0
120 Reviews
Product Specification Shipping Refund Product Specification 5" X .045 X 7/8" T1 PREMIUM THIN CUT-OFF WHEEL - 25 PACK 5" X .045 X 7/8" T1 Premium...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$24.14$24.14 - $24.14Current price $24.14| / -
4-1/2" x .040 x 7/8" T1 High Performance 4X Ceramic Cutting Wheels
Original price $0.00 - Original price $0.00Original price $0.00$10.50 - $52.50$10.50 - $52.50Current price $10.50| /4.9 / 5.0
87 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X .040 X 7/8" T1 HIGH PERFORMANCE 4X CERAMIC CUTTING WHEELS 4-1/2" X .040 X 7...
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Cut, Grind, Finish! All-In-One Variety Pack
Original price $0.00 - Original price $0.00Original price $0.00$27.29$27.29 - $27.29Current price $27.29| /4.9 / 5.0
120 Reviews
Product Specification Shipping Refund Product Specification CUT, GRIND, FINISH! ALL-IN-ONE VARIETY PACK Cut, Grind, Finish! All-In-One Mix Pac...
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4-1/2" x .040 x 7/8" T1 Thin Cut-off Wheel for Aluminum - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$24.14$24.14 - $24.14Current price $24.14| /4.9 / 5.0
32 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X .040 X 7/8" T1 THIN CUT-OFF WHEEL FOR ALUMINUM - 25 PACK 4-1/2" X .040 X 7/...
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4-1/2" x 1/8" x 7/8" T27 Pipeline Wheel - 25 Pack
Original price $0.00 - Original price $0.00Original price $0.00$28.34$28.34 - $28.34Current price $28.34| /4.8 / 5.0
29 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X 1/8" X 7/8" T27 PIPELINE WHEEL - 25 PACK 4-1/2" x 1/8" x 7/8" T27 Pipeline...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$28.34$28.34 - $28.34Current price $28.34| / -
4-1/2" x .040 x 7/8" T27 Depressed Center Thin Cut-off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$27.29$27.29 - $27.29Current price $27.29| /4.9 / 5.0
52 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X .040 X 7/8" T27 DEPRESSED CENTER THIN CUT-OFF WHEEL - 25 PACK 4-1/2" x .040...
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3" x .040" x 3/8" T1 Premium Thin Cut-off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$16.05$16.05 - $16.05Current price $16.05| /4.9 / 5.0
26 Reviews
Product Specification Shipping Refund Product Specification 3" X .040" X 3/8" T1 PREMIUM THIN CUT-OFF WHEEL - 25 PACK 3" X .040" X 3/8" T1 Premi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$16.05$16.05 - $16.05Current price $16.05| / -
4-1/2" x 1/4" x 5/8-11" T27 Hub Depressed Center Grinding Wheel - 10 pack
Original price $0.00 - Original price $0.00Original price $0.00$23.09$23.09 - $23.09Current price $23.09| /4.9 / 5.0
27 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X 1/4" X 5/8-11" T27 HUB DEPRESSED CENTER GRINDING WHEEL - 10 PACK 4-1/2" x 1...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$23.09$23.09 - $23.09Current price $23.09| / -
3/8" x 1/4" Cut Off Wheel Mandrel - 1 Piece
Original price $0.00 - Original price $0.00Original price $0.00$8.91$8.91 - $8.91Current price $8.91| /4.9 / 5.0
14 Reviews
Product Specification Shipping Refund Product Specification 3/8" X 1/4" COMBINATION CUT OFF WHEEL MANDREL - 1 PIECE 3/8" X 1/4" combination cut ...
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14" x 1/8" x 1" T1 Chop Saw Wheel - 10 Pack
Original price $0.00 - Original price $0.00Original price $0.00$39.89$39.89 - $39.89Current price $39.89| /4.9 / 5.0
32 Reviews
Product Specification Shipping Refund Product Specification 14" x 1/8" x 1" T1 Chop Saw Wheel - 10 Pack 14" x 1/8" x 1" T1 Chop Saw Wheels are d...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$39.89$39.89 - $39.89Current price $39.89| / -
7" x 1/4" x 5/8"-11 T27 Hub Depressed Center Grinding Wheel - 5 pack
Original price $0.00 - Original price $0.00Original price $0.00$20.99$20.99 - $20.99Current price $20.99| /5.0 / 5.0
13 Reviews
Product Specification Shipping Refund Product Specification 7" X 1/4" X 5/8"-11 T27 HUB DEPRESSED CENTER GRINDING WHEEL - 5 PACK 7" x 1/4" x 5/...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$20.99$20.99 - $20.99Current price $20.99| / -
14" x 3/32" x 1" T1 Stud Cutter - 10 Pack
Original price $0.00 - Original price $0.00Original price $0.00$39.89$39.89 - $39.89Current price $39.89| /5.0 / 5.0
27 Reviews
Product Specification Shipping Refund Product Specification 14" x 3/32" x 1" T1 Stud Cutter - 10 Pack 14" x 3/32" x 1" T1 Stud Cutters are a nar...
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4" x .040" x 5/8" T1 Premium Thin Cut-off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$19.41$19.41 - $19.41Current price $19.41| /5.0 / 5.0
27 Reviews
Product Specification Shipping Refund Product Specification 4" X .040" X 5/8" T1 PREMIUM THIN CUT-OFF WHEEL - 25 PACK 4" X .040" X 5/8" T1 Premi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$19.41$19.41 - $19.41Current price $19.41| / -
7" x .045" x 7/8" T1 Premium Thin Cut-off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$40.94$40.94 - $40.94Current price $40.94| /4.9 / 5.0
19 Reviews
Product Specification Shipping Refund Product Specification 7" X .045" X 7/8" T1 PREMIUM THIN CUT-OFF WHEEL - 25 PACK 7" X .045" X 7/8" T1 Premi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$40.94$40.94 - $40.94Current price $40.94| / -
4" x 1/16" x 3/8" T1 Premium Thin Cut-off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$20.46$20.46 - $20.46Current price $20.46| /5.0 / 5.0
16 Reviews
Product Specification Shipping Refund Product Specification 4" X 1/16" X 3/8" T1 PREMIUM THIN CUT-OFF WHEEL - 25 PACK 4" X 1/16" X 3/8" T1 Premi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$20.46$20.46 - $20.46Current price $20.46| / -
6" x .045 x 7/8" T27 Depressed Center Thin Cut-Off Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$33.59$33.59 - $33.59Current price $33.59| /4.9 / 5.0
20 Reviews
Product Specification Shipping Refund Product Specification 6" X .045 X 7/8" T27 DEPRESSED CENTER THIN CUT-OFF WHEEL - 25 PACK 6" x .045 x 7/8" ...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$33.59$33.59 - $33.59Current price $33.59| / -
5" x .040 x 7/8" T1 High Performance 4X Ceramic Cutting Wheels
Original price $0.00 - Original price $0.00Original price $0.00$12.60 - $63.00$12.60 - $63.00Current price $12.60| /4.9 / 5.0
29 Reviews
Product Specification Shipping Refund Product Specification 5" X .040 X 7/8" T1 HIGH PERFORMANCE 4X CERAMIC CUTTING WHEELS 5" X .040 X 7/8" T1 H...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$12.60 - $63.00$12.60 - $63.00Current price $12.60| / -
6" x .040 x 7/8" T1 High Performance 4X Ceramic Cutting Wheels
Original price $0.00 - Original price $0.00Original price $0.00$15.75 - $78.75$15.75 - $78.75Current price $15.75| /4.9 / 5.0
19 Reviews
Product Specification Shipping Refund Product Specification 6" X .040 X 7/8" T1 HIGH PERFORMANCE 4X CERAMIC CUTTING WHEELS 6" X .040 X 7/8" T1 H...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$15.75 - $78.75$15.75 - $78.75Current price $15.75| / -
4-1/2" x .040 x 7/8" T27 High Performance 4X Ceramic Cutting Wheels
Original price $0.00 - Original price $0.00Original price $0.00$10.50 - $52.50$10.50 - $52.50Current price $10.50| /4.9 / 5.0
18 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X .040 X 7/8" T27 DEPRESSED HIGH PERFORMANCE 4X CERAMIC CUTTING WHEELS 4-1/2"...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$10.50 - $52.50$10.50 - $52.50Current price $10.50| / -
7" x 1/4" x 7/8" T27 Depressed Center Grinding Wheel - 25 pack
Original price $0.00 - Original price $0.00Original price $0.00$52.49$52.49 - $52.49Current price $52.49| /4.9 / 5.0
10 Reviews
Product Specification Shipping Refund Product Specification 7" X 1/4" X 7/8" T27 DEPRESSED CENTER GRINDING WHEEL - 25 PACK 7" x 1/4" x 7/8" T27 ...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$52.49$52.49 - $52.49Current price $52.49| / -
4-1/2" x 1/8" x 5/8"-11 T27 Pipeline Wheel - 10 Pack
Original price $0.00 - Original price $0.00Original price $0.00$27.29$27.29 - $27.29Current price $27.29| /5.0 / 5.0
9 Reviews
Product Specification Shipping Refund Product Specification 4-1/2" X 1/8" X 5/8"-11 T27 PIPELINE WHEEL - 10 PACK 4-1/2" x 1/8" x 5/8"-11 T27 Pi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$27.29$27.29 - $27.29Current price $27.29| /
Abrasives are generally categorized into cutting, grinding, sanding and finishing. Bonded Abrasives are the primary products used in cutting and grinding applications. Bonded abrasives were born from the need to cut or grind down hard materials and are known for their aggressive stock removal and fast cuts.
What makes up a bonded abrasive?
Bonded abrasives are made up of 5 Primary ingredients:
- Grain. The abrasive grains do all the cutting and grinding action. Wheels can be made using aluminum oxide, zirconia, ceramic and silicon carbide grains. Aluminum oxide (AO) is the most commonly found grain used in bonded abrasives, they offer long life and consistent results. Zirconia grains are more friable than AO, providing a more aggressive cut. Ceramic grains, the least commonly used, provide the longest life AND fast cuts; check out our 4X wheels to test out the ceramic grain.
- Resin. Thermosetting phenolic resins liquify under the high pressure and heat of the cooking /curing process. Once cool the resin sets up hard as a rock, giving the bonded abrasive its hardness.
- Fiberglass. The literal safety net of the abrasive disc, fiberglass provides additional safety from side load pressure during usage. Our abrasives discs come with 2 to 3 layers of internal fiberglass.
- Metal Center. The metal center helps to guide the wheel onto the machine arbor as well as protects the arbor from undercutting that can be caused by exposed grain.
- Label. Benchmark Abrasives exclusively uses bake on labels on our wheels. The labels are baked right into the wheel formula during the pressing stage of manufacturing. When the wheel comes out of the oven the label is on there permanently…who likes labels flying off their discs (not us!)?
Abrasive Grinding Theory aka “How these rocks work?”
Abrasive grains are held together using thermosetting phenolic resins. The abrasive grain is shaped into a round disc shape and affixed to a tool that can spin at high RPMs (revolutions per minute). As the tool spins the disc, the disc is brought to the work piece to grind or cut. As the disc meets the material surface, the fast moving grains cut or grind the material and create a decent amount of friction. As the disc gets hotter the phenolic resins start to break down again, releasing the spent or dull abrasives grains, exposing new fresh cutting grains below. As the resins break down and throw off the spent grain the wheel shrinks.
What do T27 and T1 mean?
Bonded abrasive cutting discs come in two shapes, Type 27 aka T27 (depressed center) and Type 1 aka T1 (flat) or T41 if you are in Europe. Depressed center wheels are good at flush cutting protrusions like nail heads, lag bolts etc. Type 1 Flat cut off wheels are universally used for all other cutting applications when using an angle grinder.
Types of Bonded Abrasives you can find at Benchmark Abrasives
Machine Brands that are compatible with Benchmark Sanding Discs
- Black & Decker®
- Bosch®
- Ridgid®
- Ryobi®
- Skil®
- Porter Cable®
- Cobalt®
- Dewalt®
- Milwaukee®
- Makita®
- Craftsman®
- Norton®
- Metabo®
- And more…
Cut-Off wheels
Cut-off Wheels provide premium performance and increases in productivity. These disc is designed for use in angle grinders and is ideal for all types of metal/stainless steel materials as well as for cutting Fiberglass, Steel, Iron, Plastic, Stainless Steel, and other Ferrous Metals. They are internally reinforced with high tensile strength fiberglass. Highly refined ingredients will not contaminate stainless steel. It offers fast cool cutting that allows the operator to work with minimum pressure and a reduced heat-affected zone during cutting minimizes burr creation.
Bottom line, these cut off wheels offer LESS cutting resistance for fast work, LESS work piece waste, LESS vibration, LESS burrs and sparks and LESS dust than the competition.
- Sizes: 3”, 4”, 4-1/2”, 5”, 6”, 7”
- Thicknesses: 0.040”, 0.045”, 1/16” and 1/8”
- Available Formulas: Steel/Stainless, 4X ceramic grain wheels and Aluminum Cut
Tool Compatibility: Angle Grinder, Die Grinders, Air Powered Cut Off Tools, Electric Cut Off Tools, Skil Saws
Grinding Wheels
Depressed Center Grinding Wheels are suitable for general grinding of stainless steel, carbon steel, and other ferrous metals. Grinding Wheels are made to meet both ANSI and EN Standards. These wheels allow for a recessed locking nut to permit various grinding and cutting applications. Designed with the operator in mind, these grinding wheels are formulated for fast stock removal balanced with long service life.
They are manufactured with multiple layers of fiberglass, Bakelite resin, and European Aluminum Oxide grain. These wheels have set the benchmark for cost-efficient grinding.
- Sizes: 4-1/2”, 5”, 6”, 7”
- Thicknesses: 1/4” and 1/8”
- Available Formulas: Steel/Stainless and Aluminum Cut
Tool Compatibility: Angle Grinder
Depressed Center Cut-Off Wheels
T27 Depressed Center Thin Cut-off Wheels provide premium performance and increases in productivity. The depressed center design allows the flange/lock nut to recess within the grinding wheel so that it can be used for various grinding and cutting applications. This disc is designed for use in angle grinders and is ideal for all types of metal/stainless steel materials. These Cut off Wheels are designed for cutting Fiberglass, Steel, Iron, Plastic, Stainless Steel, and other Ferrous Metals. These wheels are internally reinforced with high tensile strength fiberglass. Highly refined ingredients will not contaminate stainless steel. It offers fast cool cutting that allows the operator to work with minimum pressure and a reduced heat-affected zone during cutting minimizes burr creation.
- Sizes: 4-1/2”, 5”, 6”, 7”
- Thicknesses: 0.040”, 0.045”, 1/16” and 1/8”
- Available Formulas: Steel/Stainless, 4X ceramic grain wheels and Aluminum Cut
Tool Compatibility: Angle Grinder, Die Grinders, Air Powered Cut Off Tools, Electric Cut Off Tools, Skil Saws
Chop Saw Wheels
Chop Saw Wheels are manufactured using aluminum oxide material which has a grainy texture that is good enough to cut metals with ultimate precision and perfection. These chop saw wheels help the user in providing maximum precision for cutting the metal with a perfect finish. Perfect for use on all ferrous metal, iron, steel, tube, pipe, and light gauge material like drywall studs.
Bottom line, these cut off wheels offer LESS cutting resistance for fast work, LESS work piece waste, LESS vibration, LESS burrs and sparks and LESS dust than the competition.
- Sizes: 14”
- Thicknesses: 3/32” and 1/8”
- Available Formulas: Steel/Stainless
Tool Compatibility: Chop Saws, Stationary Saws, Low Horsepower Saws, Portable Saws, Electric Chop Saws
Gas Saw Wheels
Gas Saw Wheels feature heat-treated aluminum oxide grains, which are triple external reinforced with high tensile strength fiberglass that allows for safe, fast cuts without vibrations & burrs even during extreme applications and high speeds. These Gas Saw blades can be used to cut steel, structural steel, rebar, iron pipe, bar stock, angle iron, metal tubing, etc.
Ideal for metal applications such as stainless steel, sheet metal, cast iron, and a variety of other materials.
- Sizes: 12” and 14”
- Thicknesses: 1/8” (5/64”)
- Available Formulas: Steel/Stainless
Tool Compatibility: Gas Powered Saws ONLY
Safety
Always wear proper PPE to include (but not limited to) safety glasses, hearing protection, respirator, and hand protection. Keep all guards in place on your machine.
FAQS
What are bonded abrasives, and why should I care?
Bonded abrasives are tools made by combining abrasive grains (like aluminum oxide or silicon carbide) with a bonding agent to form a solid shape, such as grinding wheels, cutting discs, or flap wheels. They’re the workhorses of metal fabrication—used for grinding, cutting, polishing, or prepping surfaces. Without them, we’d all be stuck with hand files and a lot of wasted hours.
What’s the difference between bonded abrasives and coated abrasives?
Bonded abrasives are solid shapes (grinding wheels, cut-off wheels), while coated abrasives are sheets or belts (like sandpaper). If you’re cutting or grinding, go bonded; if you’re finishing or sanding, coated abrasives are your go-to.
How do I pick the right wheel size?
The wheel size depends on your tool and the job. For handheld grinders, 4-1/2” to 9” is standard. For stationary machines, match the size to your equipment specs. Always check RPM ratings to avoid nasty accidents.
Are thin cutting discs better than thick ones?
Thin discs (1/16” or thinner) make cleaner, faster cuts with less heat buildup—ideal for precision work. Thicker discs (up to 1/4”) last longer and are better for rough cuts or thicker materials. Choose based on your priorities: speed or durability.
Can I use the same disc for steel and aluminum?
Not unless you want cross-contamination nightmares. Steel particles embed into the abrasive and can cause aluminum to corrode. Use separate abrasives for ferrous and non-ferrous metals.
How do I store bonded abrasives properly?
Keep them in a dry, cool place, away from moisture or extreme temperatures. Never stack heavy tools on them. If you wouldn’t sleep on it, don’t store your abrasives there.
How do I know when it’s time to replace a grinding wheel?
When it’s visibly worn down, damaged, or out of balance. Don’t push a worn wheel—it’ll just wreck your work and possibly your grinder.
Why does my grinder vibrate like crazy when I install a new wheel?
Your wheel might be off-balance, improperly mounted, or cracked. Check for cracks or chips and make sure it’s seated properly on the arbor. Don’t ignore it—vibration can ruin your tool and your nerves.
Why does my grinding wheel glaze over?
Glazing happens when the wheel’s surface gets too smooth and stops cutting efficiently. This can happen if you’re using the wrong wheel, grinding too lightly, or working on soft metals. Dress the wheel to expose fresh abrasive grains.
What is “wheel dressing,” and why should I bother?
Dressing removes clogged or glazed material from the wheel and restores its cutting edge. A dressed wheel cuts better and lasts longer. Skipping this step is like driving on bald tires—bad idea.
Do bonded abrasives expire?
Yes! Most have a shelf life of 2-3 years. Check the expiration date, especially on resin-bonded wheels. Expired wheels are a safety hazard.