RX Multi-material drill bit set, 7 pieces. Tungsten carbide centring tip for drilling precision, long life and wear resistance, even under heavy duty use. Made of high-speed steel (HSS), which makes the blades long-lasting and highly durable. HEX shank provides better grip and reduces slippage for maximum power transfer. Engraved shank length for easy size identification. Designed for efficient drilling in a variety of materials, offering versatility for a variety of tasks. Suitable for drilling metal, wood, plastic and brick. Set includes sizes 4, 5, 5.5, 6, 8, 9 and 10mm. Supplied in LINK compatible plastic case. Part of Ryobi's RX range of accessories.