- Professional set of 6 SDS-Plus drill bits for concrete, stone, brick, and masonry - Made of high-quality hardened steel with double-edged carbide tip for precise and efficient drilling - Double spiral geometry reduces vibration and improves concentricity, making dust removal easier - Compatible with all SDS-Plus drills, ideal for construction and renovation work - Includes 5/6/8 x 110 mm and 6/8/10/12 x 160 mm drill bits, presented in a sturdy and practical case - Especially designed for classic (non-reinforced) concrete, penetrate deeply without damaging the wall - Solid, durable, and high-performance drill bits, perfect for professional and home use