Best Coarse Grinding Discs in 2026

【Value Kit】The 2 inch discs set comes with two 1/4'' holders, 15 non-woven discs (coarse/medium/fine), 64 aluminum oxide discs (40#/60#/80#/120#/180#/240#), 15 zirconium oxide discs (60#/80#/120#), two mini flap disc (40#), two black sanding discs and one wool disc. The product quantity and grits are indicated on separated packing bags.

【High Performance】These sanding discs combine premium quality sanding grains(aluminum oxide/zirconium oxide/non-woven aluminum oxide/SiC/wool) with strong, high toughness shank base, long last with high abrasive resistance. They can operate up to 23000 RPM.

【Wide Applications】Various surface conditioning discs are excellent for using on surfaces of carbon steel, stainless steel, alloys, iron, non-ferrous and other nonmetal materials like wood, glass, ceramics, stone. Widely used in shipbuilding, car building, aviation, and machinery.

【*NOTICES】- Our poly strip disc wheel are design for 4" with 5/8" arbor striper of various models angle grinders in the market. DOES NOT FIT WAGNER PAINT EATER or DRILL. Please make sure the arbor size and the outer diameter are match with your grinder machine before you purchase.

【BLACK DIAMOND CUP WHEEL】- The black diamond material is a high-strength, high-wearing honeycomb soft abrasive tool formed by combining high-strength wear-resistant fiber mesh as substrate and organically combining resin elastomer and corundum with a special process.

【STRIP DISC SIZE】- Diameter 4", Thickness 3/5", Aperture 5/8", Maximum speed 12500 (R.P.M), Maximum speed 80, Abrasive grain size - black silicon carbide 46#

Pack of 25 Discs

4-1/2" Diameter with 7/8" Arbor hole

Performs great for blending welds

CUTS FAST — 3M Precision-Shaped Grain cuts exceptionally fast with less pressure to boost productivity

LASTS LONG — Maintains sharp cutting edges throughout the life of the disc, reducing changeouts

DURABLE RESIN BOND — Resin bond and stiff fiber backing improve durability and tear resistance in high-pressure grinding

【FUNCTION】 The diamond flat lap disc is designed for sanding and polishing, such as crystal, agate, jade, jewelry, glass, rock, granite marble, etc. And different grit of diamonds can meet your different needs.

【APPLICATION】 The flat lap wheels are suitable for Angle Grinder, Gem Faceting Machine with 1/2 inch arbor hole.

【Design】 Our flat lap discs are extremely flat and parallel, and can meet the most precise faceting requirements.

Benchmark Abrasives 4-1/2" diameter and 7/8" arbor premium ceramic resin fiber discs are commonly used for surface preparation, blending, chamfering, paint or rust removal, etc.

Ceramic resin fiber discs are made by electrostatically depositing grains of aluminum oxide on heavy-duty vulcanized fiber backing with heat-resistant phenolic resins.

Designed to meet industrial standards, our fiber discs are recommended to be used with power tools such as right-angle grinders. Ceramic resin fiber grinding discs are best for cool, rapid stock removal.

Roloc Quick Change Discs Set - 100 Pcs Aluminum Oxide discs, 5 kinds of common grits (36/60/80/120/240) to meet your various grinding requirements, each kind has 20 Pcs ; 1 Pcs 1/4" shank disc pad holder with round/hex shank. The Quick Change Sanding Discs can meet the requirement of 23000Max. Rpm.

Durable Material - The Quick Change Sanding Discs made of Premium aluminium Oxide corundum abrasive grain has high abrasion resistance and hardness, and the surface is attached with thermal and blocking resistant coating, which can improve the grinding efficiency and service life.

Quick Change - These quick change disc has unique safety torque screw, the connection between sanding disc and rubber holder get firmly when rotating, ensures steady working and no fall out. Just twist it to remove or connect, convenient and efficient.

Roloc Quick Change Discs Set - 60 Pcs Aluminum Oxide discs, 5 kinds of common grits (36/60/80/120/240) to meet your various grinding requirements, each kind has 12 Pcs ; 1 Pcs 1/4" shank disc pad holder with round/hex shank. The Quick Change Sanding Discs can meet the requirement of 23000Max. Rpm.

Durable Material - The Quick Change Sanding Discs made of Premium aluminium Oxide corundum abrasive grain has high abrasion resistance and hardness, and the surface is attached with thermal and blocking resistant coating, which can improve the grinding efficiency and service life.

Quick Change - These quick change disc has unique safety torque screw, the connection between sanding disc and rubber holder get firmly when rotating, ensures steady working and no fall out. Just twist it to remove or connect, convenient and efficient.

Pressure sensitive adhesive backing sticks easily to backup pad and removes cleanly

Ceramic aluminum oxide grain blend surpasses aluminum oxide abrasives in cut-rate and durability

Heavyweight cloth backing supports high-pressure, tough applications

HIGH PERFORMANCE: Our 7" x 7/8" resin fiber aluminum oxide disc features a grit size of 60 which is coarse, great for tough jobs, and blending and welding metals. Built to handle the most strenuous metalworking applications, the fast cutting grain easily handles high-grade materials, such as lacquer & wood.

VERSATILE ABRASIVE MATERIAL: These fibre discs are made with a universally applicable aluminium oxide abrasive with a semi-robust cotton backing, which makes it ideal for levelling welds in chemical or food tanks. Because these discs adapt well to the workpiece, it also enables optimal results at low to medium contact pressures.

ATTENTION TO DETAIL: This product is coated onto a durable tear-resistant vulcanized fiber backing and adhered with a specifically engineered resin system and coated for hand-held application. The VSM Aluminum Oxide resin fiber discs give fast metal removal which helps reduce operator fatigue and increase operator productivity.

✅【What you will get】25pcs Zirconium Oxide blue discs (60/80/120/180/240), 15pcs ceramic purple disc (60/80/120), 15pcs non-woven fabric discs (coarse/medium/fine), 4pcs Black Strip discs, 2pcs Compressed Wool discs, 1pcs #36 Zirconium Oxide flap disc (blue), 1pc 1/4" shank holder, 1pc round bar, and 1pc hex bar, Various sanding discs to meet your various polishing requirements.

✅【Unique One-Piece Shank Holder】The 1/4" shank holder features our unique one-piece design, which has significantly reduced vibration, increased work efficiency, and supports Max RPM up to 45,000. Works perfectly with our own branded quick change sanding discs.

✅【Enhanced Usability with Ceramic Grains】This quick change sanding disc set includes discs (purple) manufactured with ceramic grains for an advanced, self-sharpening feature that enhances their usability & cutting rates and durable life, which improves your polishing efficiency and saves your money.

HIGH PERFORMANCE: Our 4 1/2" x 7/8" resin fiber ceramic disc features a grit size of 60 which is coarse, great for tough jobs, and blending and welding metals. Built to handle the most strenuous metalworking applications, the fast cutting grain easily handles high-grade materials, such as stainless steels, carbon steels, and wood.

SELF SHARPENING EFFECT: Our Ceramic abrasive's self sharpening effect results in an extremely high stock removal rate thanks to constant recreation of sharp grain points - for processing stainless steels, superalloys, and other high-density metals or for removing weld seams.

ATTENTION TO DETAIL: This product is coated onto a durable tear-resistant vulcanized fiber backing and adhered with a specifically engineered full resin bond system and coated for hand-held application. The VSM Ceramic resin fiber discs give fast metal removal which helps reduce operator fatigue and increase operator productivity.

Industry-First X3 Technology combines an advanced grain anchoring system, dual flap design and engineered backing that delivers faster grinding AND longer disc life for increase productivity

Triple Split Coat anchor grains securely to maximize grinding at moderate pressure

Dual flap design pairs Ceramic Alumina and Zirconia Alumina grain to grind faster and last longer

RECOMMENDED APPLICATIONS: Blending, Grinding, Refining

CONSISTENT FINISH: These premium discs are designed for ease of use and consistent surface finishing results

MULTI PURPOSE: Suitable for aluminum and soft metal, carbon steel, stainless steel and more

Cut Anything Easily in Seconds--Our high-speed unbreakable discs provide flat, clean cuts without cracking, no matter what material is being cut - metal, stone, ceramic, wood or tile. With this disc, you can complete cutting tasks in half the time and be confident in its reliability.

Unbreakable Grinding Disc--The traditional angle grinding disc has poor cutting ability and breaks easily. Introducing an indestructible grinding disc designed to be highly durable and efficient, capable of cutting through any material with ease in seconds.

Smooth Chip-Free Cutting--It cuts with extremely high precision, leaving your material clean and chip-free. It is suitable for chamfering, grinding and smooth cutting of jade, crystal, metal, ceramics, tiles and other materials.

Material: aluminum, resin, diamond, 320 grit

Features: High hardness, high strength, high grinding capacity.

Product size: OD: 100mm/3.94" ID: 20mm/0.79" Thickness: 32mm/1.26" Diamond ring thickness: 5mm/0.2" Weight: 636g

Package includes 10 pieces 2 inch 80 Grit (Yellow) R-Type Quick Change Roll Lock Bristle Discs

Molded, abrasive filled bristles strip, deburr, blend, finish, polish, clean, and remove coatings more effectively than wire brushes. Bristle disc has uniform grinding force, wear resistance, and flexibility.

Use for deburring, blending, finishing, polishing, cleaning, and coating, defect, scratch and rust removal. This product is great for cleaning gasket material off engine surfaces. Flexible bristles conform to contours to produce consistent finishes, even on complex parts.

RIGID DIAMOND MATERIAL: This diamond cutting piece not only has high hardness and excellent impact resistance, but also has excellent wear resistance and long service life.

APPLICABLE MATERIAL: This emery bowl is used to cut hard and brittle materials such as glass, ceramics, etc.

GOOD GRINDING EFFECT: Using this bowl-type grinding chip to cut hard and brittle materials such as glass, ceramics, marble, and metal circuit boards, you can provide clean edges and surfaces.

Material: the grinding head is made of high-quality silica gel, with good grinding granularity and effect, fine workmanship and long service life.

Usage: It can be used for polishing and polishing diamonds, jade, amber, agate, honey wax, ceramics, metal, jade carving, etc.

Features: good finish, not easy to blacken, widely used for grinding and polishing, wide applicability of 2.35MM handle, 80-2000 grinding particle size, complete specifications.

Excellent Material:The wet polishing pads use diamond micropowder with resin bond,aggressive and durable,which has fast polishing and high brightness,strong and durable,easy to bend,and easy to polish.

Esign for Accuracy:Incisive,wear-resistant and high efficiency.Each wet polishing pad is surrounded by connectors to strengthen the design,which can effectively prevent edge drop.

Seam Leaved Design:Sanding pads adopt a seam leaved design,which makes the sheet body softer,fast heat dissipation,low noise,and more convenient to use.

Grit:60# 100# 200# 400# ,Package :4pieces

Diameter:5 inch/ 125mm, Inner hole 22.23mm,Material:ELectroplated diamond

Features:More than 100 times working life,Save a lot of loading and unloading time,Perfect processing effect

Ultra-fine microstructure allows the ceramic grain to self-sharpen for ultra-high metal removal rates and optimal productivity

Unmatched life means more material is removed over the life of the abrasive

Precision balanced to ensure smooth, vibration-free operation and reduced operator fatigue