Lukas patented lamella design for extremely aggressive and durable use. Also ideal for processing weld seams. Efficiently works on harder materials. A fiberglass backing supports excellent surface results due to its flexibility. Elastic backing material ensures low vibrations during work. Tested quality: high safety through regular testing. Cost-effective to purchase. Made with the best-selling backing. Excellent utilization of the abrasive grain through a flat arrangement for a long lifespan. Maximum durability due to multilayer abrasive coating. High hardness and sharpness for a long lifespan. High safety: no breakage of the highly tensile fiberglass. Always fresh abrasive coating in use: wear exposes the underlying lamellas. Cost efficiency through optimal use of the entire abrasive coating thanks to specially shaped lamellas. Lightweight backing material for reduced tool weight. Quieter: 50% less noise than conventional grinding discs. More power, higher working speed, and better surface results than with a grinding disc. More abrasive grain in the outer area for high grinding speed. Increased safety through optimized adhesion of the lamellas. Self-sharpening effect: high material removal, especially on stainless steel. Safe operation even at high rotational speeds and temperatures thanks to special resin bonding. Environmentally friendly production with state-of-the-art resin curing technology. Less vibration for more comfortable working. Tool innovation: available only at Lukas. Universally usable on standard angle grinders thanks to a 22.23 mm bore. This extremely aggressive and durable flap disc with sickle lamellas and zirconia corundum is the perfect alternative to grinding discs or conventional flap discs. It is excellent for rounding sharp edges, processing weld seams, or cutting edges.