Up to 5 times more precise than a standard drill - Modern construction sites require working with many different materials and you never know what to drill next. It can be difficult and time-consuming to find the right drill bit - unless you have the Expert MultiConstruction drill bit. This extremely versatile drill allows precise drilling in hard materials, such as tiles or granite, without slipping away. This is made possible by its sharp tip and advanced geometric design. It has been manufactured from optimised carbide using our fine grinding manufacturing process, making it equally suitable for concrete, brick, wood and metal. Regardless of the material, it always performs professionally. The Bosch Expert CYL-9 MultiConstruction round shank drill should not be missing from any toolbox: You can get any job done precisely and don't waste time looking for the right drill bit. Cylindrical shank is suitable for gear rim drill chucks. Diameter (D) mm: 4.00, Working length (L1) mm: 45, Total length (L2) mm: 75