Faithfull FAISDS10210B SDS Masonry Drill Bit 10 mm x 150 mm WL x 210 mm - Bulk pack of 10 SilverFor use in bricks, blocks, concrete containing aggregates, marble and hard stone and other hard masonry materials These high performance Faithfull Tungsten Carbide tipped drill bits fit into 'SDS plus' chucks The SDS plus bits ensure maximum power transmission due to their unique fluted shaft The SDS plus system also enables faster changing of drills using a quick release keyless chuck Diameter: 10 mm, Working Length: 150 mm, Overall Length: 210 mm