Abrasive and diamond disc guides

These technical guides explain how to choose and safely use cutting, grinding, flap and diamond discs. They are written for professional users as well as for DIY enthusiasts.

Galflex is an authorized Tyrolit distributor in Romania. The guides cover general principles; for a specific application, always check the manufacturer data and the instructions on the product.

All guides

• How to choose the right cutting disc for your angle grinder

  Which cutting disc to use for steel, stainless, aluminium, cast iron or stone, which thickness and diameter to pick, and which Tyrolit quality line suits your workload.

• Cutting disc vs grinding disc vs flap disc: which one for which job

  What each angle grinder disc does, the right working angle and which one to use for cutting, weld seams, rust, bevelling and finishing.

• Flap disc grit guide: choosing between 40, 60, 80 and 120

  Grits 40, 60, 80 and 120 explained: what each one does, which grain to choose for steel or stainless, 27A or 28A shape and the right sequence.

• How to choose a diamond blade for concrete, stone, tiles and asphalt

  Which diamond blade to use on concrete, reinforced concrete, granite, tiles or asphalt: rim types, dry vs wet cutting and protection against silica dust.

• Abrasive disc markings explained: how to read a cutting disc label

  What D × T × H, 80 m/s and RPM, the colour code, the date on the metal ring, EN 12413 and the oSa mark mean: how to read an angle grinder disc label before fitting it.

• Angle grinder and abrasive disc safety: a practical guide

  Why discs made to EN 12413 with the oSa mark matter, how to store, inspect and mount them, which PPE to wear and how to control crystalline silica dust. With a pre-work safety checklist.

• Abrasives for stainless steel (INOX): cutting, grinding and finishing

  Why stainless steel needs dedicated abrasives, what Fe, S, Cl purity really means and how to move from cutting to grinding and finishing with flap discs.

• Which angle grinder disc? A DIY guide to choosing the right one

  Which disc to fit to your angle grinder for rebar, profiles, paving stones, tiles, rust or welds, how to match it to the machine, and the safety rules for beginners.

• How to choose the right bench grinder wheel

  How to read a grinding wheel specification, which grit and hardness to choose for sharpening, deburring or stock removal, and how to mount and dress the wheel safely.

• Cheap vs premium abrasive discs: what is the real cost per cut?

  The disc price is only part of the cost. How to calculate the real cost per cut and choose the right Tyrolit line, from occasional DIY to industry.