Bosch 2608680273 - Pack of 5, 10 mm SDS Plus 1 Hammer Drill Bit has a working length of 100 mm and the total length of 160 mm. It has a diameter of 10 mm. The hammer drill bit has an insert of tungsten carbide that is brazed with the steel to offer a precise cutting edge. Commonly it is used with a hammer drill that drills the bit inside the material that is being drilled as it rotates. Bosch 10 mm Hammer Drill Bit can create clean holes due to their optimized helical shape. It also helps in easy dust removal with reduced heating and improved durability.