Cutting discs are thin (typically 1mm-3mm) with a sharp edge — designed for cutting metal, stone, or masonry. They cut by abrading along the edge; using them for grinding rapidly destroys the disc and is dangerous. Grinding discs are thick (typically 6mm) with a flat face — designed for grinding, dressing, and material removal across the disc face. Flap discs use overlapping abrasive flaps mounted on a backing pad, providing both grinding and surface finishing in one disc — they remove material faster than grinding discs and leave a finer finish. Each disc type has a designed application and using them off-spec is unsafe.

Match the abrasive grain to the work. Aluminium oxide is the standard for general steel and metal — fast-cutting, good service life. Zirconia is harder-wearing and runs cooler, suiting stainless steel where heat builds quickly and contamination from carbon-steel dust must be avoided (stainless-only discs are clearly marked). Silicon carbide is for stone, masonry, and concrete — different grain structure designed for the harder, brittler materials. Universal discs exist as compromise but always perform less well than application-specific abrasives. Check the disc face and packaging for the intended material.

Both remain widely available — the choice is determined by the angle grinder you have, not by trend. A 4.5-inch grinder takes 115mm discs; a 5-inch grinder takes 125mm discs. The 125mm size is increasingly specified on newer grinders for slightly longer disc life and better cooling, but 115mm remains extremely common across UK trade. 230mm discs are for larger angle grinders used in fabrication and construction — different tool, different application.

Parts For Machines is an Authorised Distributor and Seller of Abracs across cutting, grinding, sanding, and polishing consumables. Abracs is a UK trade-channel specialist with the Phoenix (extra-thin cutting), ProFlex (heavier cutting), and flap-disc ranges covering the everyday workshop consumable. Diamond blades, sanding belts, wire brushes, and emery products complete the abrasive range. Trade pack sizes (typically 25 or 50 per box) are the standard for trade and contractor purchasing; smaller individual packs are also carried for ad-hoc requirements.

Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.

Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and 'Check where we deliver' confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.

Match by material (mild steel, stainless, aluminium, stone, concrete), disc diameter to the tool (115mm, 125mm, 180mm or 230mm), and bore (usually 22mm). For metal cutting, use thin cutting discs (1mm-2.5mm) or extra-thin ProFlex; for grinding, use depressed-centre grinding discs or flap discs; for stone and concrete, use diamond blades or stone-cutting discs. Each product page lists the application and maximum RPM.

A grinding disc is a thick bonded abrasive for fast stock removal; a flap disc has overlapping abrasive flaps that grind and finish in one pass, leaving a smoother surface (60, 80 and 120 grit, lower grits remove faster, higher grits finish). Wire brushes, including the Osborn range, are used for rust removal, weld-cleaning and surface preparation rather than stock removal, and come as hand brushes, cup brushes and wheel brushes for angle grinders and bench grinders. For one-pass work on welds, fillets and edges, flap discs are usually the better pick.

Yes. Cutting and grinding discs listed here carry an EN 12413 conformity rating, the European safety standard for bonded abrasive products. Each product page lists the maximum operating speed in RPM, which must not be exceeded for the tool's actual running speed. Always check the disc diameter and RPM rating against the tool before fitting.

Most abrasive consumables ship in pack quantities of 10, 25 or 50 per box, with bulk and pallet pricing available for fleet, contractor and trade-counter customers. For multi-pack or pallet quotations, contact the team via WhatsApp 07754288583 with the product code and quantity.