Up to 4x faster than standard fibre disc - Grinding down welds on fabricated stainless steel workp...Up to 4x faster than standard fibre disc - Grinding down welds on fabricated stainless steel workpieces is tough and time-consuming. If the process can be speeded-up, there is a significant efficiency gain for the skilled craftsmen who do this job. And with the Expert R782 Prisma Ceramic Fibre Disc you can grind much, much faster. Bosch Prisma Ceramic offers a grain of perfectly sharp triangles which cut more effectively than even standard ceramic grains. This highly efficient disc generates less surface heat as you work, allowing you to grind faster, for longer. Additionally, a self-sharpening effect ensures this speed advantage is maintained over a long lifetime. The Bosch Expert R782 X-LOCK Prisma Ceramic Fibre Disc for Inox allows you to grind stainless steel much faster than conventional discs, with no compromise on quality. It therefore offers a leap forward in productivity for professionals using angle grinders. Up to 4x faster than standard fibre disc. Fast stock removal with Bosch Prisma Ceramic technology. Ideal for grinding stainless steel, such as removing raised welds from fabricated stainless steel structures. Fast and quality finish. Disc diameter mm: 125 Bore diameter mm: 22,23 Grit: 36 Bosch EXPERT Stainless Steel Prisma Ceramic Fibre Disc 125 x 22.23mm 36G (25 Pack)
The X-LOCK Prisma Ceramic Fibre Disc, R782 Inox delivers speed, a consistent cut and is optimised for stainless steel.The optimal triangular shape of the prisma ceramic grain allows the disc to cleanly cut through metal, delivering up to 80% faster stock removal compared to crushed ceramic discs. R782 is optimised for stainless steel due to the cooling aid, which helps to displace heat during the grinding process, and wide grit range, making it the best choice for all jobs. This fibre disc is perfect for weld preparation and removal, scale removal, blending and removing discolouration. Changing fibre discs is fast and convenient thanks to the keyless X-LOCK system. Discs are suitable for clamping on an X-LOCK or standard rubber backing pad. X-LOCK sanding discs also fit standard angle grinders.
Best current price£9.70from Rapid Online - Rapid Electronics Ltd.
Bosch Professional 5X Expert R782 Prisma Ceramic X-Lock Fibre Discs (For Steel, Stainless Steel Sheets, Ø 125 Mm, GritFree delivery in 1–3 days£30.04Visit shop →
Product Information
Full details
This guide is for professionals working with stainless steel, offering a significant increase in grinding efficiency. The Bosch EXPERT R782 X-LOCK Prisma Ceramic Fibre Disc provides up to 4x faster performance compared to standard discs by utilizing advanced Prisma Ceramic technology. While exceptionally fast, users should ensure proper fitment with the X-LOCK system or standard backing pads for optimal results.
All features
Model Part Number
2 608 621 824
Brand
Bosch
Extended Product Information
FAQs
What is the main advantage of Bosch Prisma Ceramic technology?
Prisma Ceramic technology uses uniquely shaped triangular grains that are exceptionally sharp and cut more aggressively, leading to faster material removal and increased efficiency compared to standard ceramic grains.
Can I use this disc on materials other than stainless steel?
While optimized for stainless steel, the disc can be used on other metals. However, its performance and lifespan may be best on stainless steel due to its specific design features like the cooling aid.
How does the X-LOCK system work?
The X-LOCK system is a tool-free system for changing angle grinder accessories. You simply align the accessory with the X-LOCK interface on the grinder spindle and press down until it clicks into place. Removal is just as easy.
Does this disc fit on standard angle grinders without X-LOCK?
Yes, the Bosch EXPERT R782 discs also fit standard angle grinders using a conventional nut and thread system, provided they are mounted on a compatible rubber backing pad with a 22.23 mm bore.
How long does the self-sharpening effect last?
The self-sharpening effect is designed to maintain the disc's high performance over a long lifetime. The triangular grains fracture in a way that continually exposes new, sharp cutting edges.
What grit size is this disc?
This specific disc (2 608 621 824) is a 36-grit disc, suitable for rapid stock removal and heavy-duty grinding tasks.
What applications is this disc best suited for?
It is ideal for grinding down welds on stainless steel, weld preparation and removal, scale removal, blending metal surfaces, and removing discoloration.
Troubleshooting
Disc not mounting on X-LOCK grinder
Ensure the grinder's X-LOCK interface is clean and free of debris. Verify you are aligning the disc correctly with the system's grooves.
Rapid wear or overheating
Check that you are using the disc on the correct material (stainless steel is optimal). Ensure adequate pressure is applied but avoid excessive force, which can generate unnecessary heat. Verify the grinder speed is appropriate for the task.
Poor cutting performance
Confirm the disc is securely mounted and rotating in the correct direction. Check if the disc surface is clogged with debris; if so, a new disc may be needed. Ensure the material being ground is compatible.
Excessive vibration
Inspect the disc for damage or warping. Ensure the backing pad (if used) is securely attached and in good condition. Check the angle grinder's spindle for any issues.
Pros and Cons
Pros
Dramatically increases grinding speed on stainless steel.
Reduces heat buildup, enabling longer work sessions.
Maintains high performance throughout the disc's lifespan.
Quick and tool-free accessory changes with X-LOCK.
Versatile for multiple stainless steel finishing tasks.
Cons
Primarily optimized for stainless steel; may not perform as optimally on other materials.
Requires compatible X-LOCK grinder or standard backing pad.
As a consumable, it has a finite lifespan, though extended by its self-sharpening feature.
Higher initial cost compared to standard abrasive discs.
Setup, Compatibility & Care
Setup:
Ensure your angle grinder is compatible with either the X-LOCK system or a standard 22.23 mm bore size.
If using an X-LOCK grinder, align the disc with the X-LOCK interface and press down until it clicks securely in place. No tools are required.
If using a standard angle grinder with a rubber backing pad, ensure the pad is suitable for 125mm discs and is securely fastened.
Always wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and hearing protection.
Compatibility:
Grinders: Compatible with Bosch angle grinders featuring the X-LOCK system. Also compatible with angle grinders using a standard 22.23 mm bore size when mounted on a suitable backing pad.
Materials: Optimized for grinding stainless steel. Also suitable for other metals where fast stock removal is required, though performance may vary.
Care:
Store discs in a dry environment away from moisture and extreme temperatures.
Avoid dropping or damaging the discs, as this can affect their performance and safety.
Inspect discs for damage before each use. Discard any damaged discs immediately.