Bosch - 2.8mm Cyl-9 Multi Construction Drill Bit Carbide Multi Construction Drills 3mm manufactured from fine grain durable carbide. Features: - Diamond ground cutting edges - Four spiral dura design - Special slot for multi-function drilling Specifications: - Material: Metal - Colour: Grey - Dimensions: 14.5 x 4 x 0.3cm - Weight: 0.008kg - Warranty: Based On Manufactures Defects What's in the box x 1 Drill Bit