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Grinding disc Bosch 2 608 621 794
The Bosch EXPERT R781 Prisma Ceramic Fibre Disc (Grinding disc Bosch 2 608 621 794) is a fibre grinding disc designed for fast metal grinding on stainless and thin steel sheets. With a flat centre and a pack of 25 discs, it is intended for use with angle grinders fitted with the X-LOCK system to improve grinding speed while maintaining surface quality.
The Prisma ceramic abrasive structure of the EXPERT R781 provides faster stock removal compared with conventional grinding discs while preserving consistent performance during use. The flat centre design ensures even contact on sheet metal and narrow welds, and the supplied pack of 25 discs reduces downtime for replacement. The brown-coloured abrasive indicates the ceramic composition suited for metalworking.
Fit the disc to a compatible angle grinder with X-LOCK or the appropriate locking interface, ensuring the grinder is disconnected from power during installation. Hold the grinder at a shallow angle to the workpiece and apply steady, even pressure while moving across welds or sheet surfaces. Replace the disc when abrasive performance decreases or the disc becomes damaged. Follow the angle grinder manufacturer’s safety instructions and wear appropriate PPE (eye, ear and hand protection).
Use the EXPERT R781 Prisma Ceramic Fibre Disc for tasks requiring rapid material removal on stainless and thin steel; start with a moderate grinder speed and test on a scrap piece to find the optimal angle and pressure. Ensure correct disc mounting and do not exceed the maximum RPM marked on the disc and the grinder.
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