Product Description of the Nitro EXTREME Ceramic Discs 6", 7", 8" No Hole / 8+1 Hole 'Festool-Fit', 50/PackWith a high ceramic content, closed-coat abrasive grain and heavy polyester backing, our Nitro EXTREME Ceramic Discs are a very high-quality product with superior performance and durability to anything on the market.
Being closed coat the material is very aggressive and therefore offers faster stock removal, particularly on hard woods. The strong polyester cloth backing is tear-resistant and the self-sharpening feature of the ceramic grains provides a consistent finish throughout the life of the disc.
Offering the best performance while at a very attractive price, we find this to be a very popular product with our customers. The feedback which we have had is that these belts can last up to 4 times longer than zirconia discs, depending on the type and porosity of the wood floor.
Why Use Ceramic?Nitro EXTREME Ceramic Discs have a ceramic grain, which lasts the longest of all coated abrasives, as well as being the fastest cutting. This is due to the micro-crystalline grain which self-sharpens and fractures more uniformly to give more consistent performance, and works well in medium to high pressure applications. Nitro EXTREME Ceramic Discs are ideal for even the most demanding applications where productivity and fast stock removal are key.
Ceramic is in some cases supplied with a "topsize" (also known as "top coat", or "supersize layer".) This is a coating which is sprayed on to the grit to act as a coolant when working on heat-sensitive metals such as stainless steel and exotic alloys, and therefore reduce discoloration or burning. It can however also act as a lubricant to help reduce loading (where stock removed from the workpiece builds up on the abrasive and makes it less effective) on softer metals such as aluminium. The presence of a topsize does reduce the aggressiveness of the grain however, and so it is best not to have one if discoloration will not be an issue, for example when working on mild/carbon or structural steel.
Available in various forms including abrasive belts, velcro-backed discs, flap discs and fibre discs. Roloc discs, also known as speedlok, siafix, quick-release, and quick-change discs, are also very popular and often used for blending/removing welds and spot repair. Our Nitro Fast-Cut Ceramic Rolocs in particular are very aggressive and available as coarse as P24, therefore being useful for fast stock removal, while the Green Nitro and Red Nitro Ceramic Roloc Discs have a topsize and are ideal for reducing heat generation. For working on softer metals such as aluminium there is also the option of the unique White Nitro, which has a stearate coating to help reduce loading on the disc.