Bonded, Coated, Cutting and Blades: A Simple Framework to Understand Abrasive Families

Make Sense of Abrasive Families with CUMI

From small workshops to heavy industry, **CUMI** provides a complete range of bonded, coated, cutting wheels and cutting blades so users can match the right abrasive family to every job. This guide explains each family in simple language and then directs readers into the exact CUMI product ranges to explore further.​

Bonded Abrasives: Heavy Stock Removal & Precision

CUMI manufactures vitrified, resinoid and rubber bonded wheels for everything from rough snagging to high‑precision grinding, backed by 70+ years of abrasive manufacturing expertise. These wheels handle cylindrical, centerless, surface and tool‑room grinding in demanding sectors such as automotive, **steel, [bearings](https://cumiabrasive.in/industries/bearing/)** and general engineering.​

• Use **bonded wheels** when you need aggressive stock removal, tight tolerances or shape control on components like crankshafts, bearing races, valves and cutting tools.​
• CUMI’s integrated operations and strong application engineering teams allow custom solutions in different sizes, bonds and grains for specific industry needs.​

Coated Abrasives: Sanding, Polishing and Finishing

CUMI’s **coated abrasives** portfolio covers belts, rolls, sheets, flap discs, fibre discs and specialty forms designed for sanding, polishing and surface preparation. Products use advanced alumina grains and carefully engineered bonds to deliver cool cutting, consistent finish and long life on metal, wood, paint and composites.​

• Choose coated abrasives when the objective is to smooth, blend, deburr or prepare surfaces for painting, coating or welding rather than remove large amounts of material.​
• CUMI offers multiple backings and grit ranges so users can move from aggressive sanding to fine finishing while staying within one trusted brand.​

Cutting & Grinding Wheels: Fast, Accurate Sectioning

CUMI **cutting and grinding wheels** are built for heavy‑duty cutting, shaping and grinding with a focus on accuracy, efficiency and operator safety. Reinforced resinoid bonds enable fast, cool cuts with reduced burr in steel, stainless steel and other engineering materials across fabrication, construction and maintenance.​

• Use thin cutting wheels for quick, straight cuts in bars, tubes and profiles; switch to grinding wheels for edge preparation, weld removal and profile grinding.​
• CUMI’s range covers popular diameters and thicknesses for angle grinders, chop saws and fixed cut‑off machines, helping plants standardize on a single, reliable supplier.​

Cutting Blades: Long‑Life Metal & Stone Cutting

CUMI **cutting blades, including specialized TCT and diamond blades, are engineered for sharpness, long life and stable cutting in tough materials. Flagship lines such as the [CUMI 500 RFT diamond blades](https://cumiabrasive.in/product/cumi-500-rft-blade/)** use advanced hot‑press technology and segment design to deliver hundreds of running feet of smooth cutting in granite, marble and concrete.​

• These blades are ideal for construction, infrastructure and fabrication where deep cuts in concrete, stone, tiles or metal must stay accurate while minimizing downtime for blade changes.​
• By pairing CUMI blades with the right machines, users gain cleaner edges, faster progress on site and predictable tool life, improving total job economics.