RX SDS+ 2-piece drill bit set, 5 pieces. Tungsten carbide 2-piece tip for precision drilling, long life and wear resistance even under heavy-duty use. Optimum chip removal is achieved by the spiral drill design, which speeds up drilling by efficiently removing drilling debris. The SDS+ mounting arm ensures maximum power transmission. Engraved shank length for easy size identification. SDS+ 2-piece drill bits are specifically designed for use with SDS+ drill bits. Ideal for drilling in concrete, stone and masonry. The set includes sizes: 5.5, 6, 7, 8 and 10 mm. Supplied in a LINK-compatible plastic case. Part of Ryobi's RX range of accessories.