Metal Cutting Discs – Flat Abrasive

A flat abrasive metal cutting disc sounds straightforward enough, and honestly it is. But the quality gap between a decent disc and a poor one shows up fast when you’re midway through a length of box section and the disc starts loading up, burning, or worse, shattering. These aren’t that disc. Manufactured to EN12413 with two fibreglass reinforcements, they’re built to stay together under the kind of load angle grinders and cut-off saws actually put them through.

The abrasive is high grade, highly refined aluminium oxide grit, which cuts cleanly through ferrous metals without the excessive heat you get from cheaper, lower-grade alternatives. The whole thing is bonded with a bakelite resin that holds the structure together properly rather than letting the disc deteriorate unevenly. Two fibreglass reinforcement layers sit within the disc body, giving it the rigidity and tensile strength it needs to run safely at operating speed. EN12413 compliance isn’t just a badge either; it’s the European standard for bonded abrasive products, covering everything from maximum operating speed to burst resistance.

Flat Abrasive Metal Cutting Disc Sizes and Machine Compatibility

The range covers a wide spread of applications. The 100mm and 115mm discs at 3.0mm thickness are the right tool for a 4 or 4.5 inch angle grinder, the kind that lives in every van. The 125mm disc is available in both 2.5mm and 3.0mm versions depending on how you’re working. At 230mm you’re into larger angle grinders, still hand-held but significantly more powerful. The 300mm disc is designed for portable engine-driven power saws, the kind used on site when you need to cut reinforcing bar or heavier structural steel without access to a fixed machine. The 350mm disc steps up again and is intended for fixed or bench-mounted cut-off saws only.

All 115mm to 230mm discs use a 22.2mm bore, which is the standard fitment for most angle grinders on the market. The 100mm discs come with a 16mm bore. The 300mm disc uses a 20mm bore and the 350mm uses a 25.4mm bore, both matching their respective machine types.

Buying in Bulk

Discs are available individually, in boxes of 25, or boxes of 50. If you’re running a team, burning through discs daily, or just sensibly stocking the van for a long job, buying in quantity makes the price per disc genuinely attractive. At under a pound each on single units, the bulk pricing brings them down further still.