🔧 Drill Your Way to Perfection! Includes 4mm to 10mm bits for all your masonry needs. Weighs only 260g, making it easy to handle and store. Crafted with high-speed steel for durability and performance. Manufactured by Bosch, a leader in power tool accessories. Parabolic flute type for optimal dust removal and faster drilling. Dimensions: 160.02 x 55.12 x 18.03mm Diameter: 4-10mm Material: High Speed Steel The Bosch 2608578155 Masonry Drill Bits Set includes five high-speed steel bits ranging from 4mm to 10mm, designed for efficient drilling in masonry. With a parabolic flute design for superior dust removal and a lightweight build, this set is perfect for both professionals and DIY enthusiasts looking for reliable performance.