DEWALT SDS Plus Extreme 2®Drill Bits are made from superior carbide grade for long life and greater durability. The hardened body adds further strength and helps to reduce breakage. Its optimised flute design provides efficient debris removal whilst the tip design ensures better bit penetration. This 10 Piece set contains the following sizes: 5 x 110mm, 6 x 110mm(x2), 6 x 160mm(x2), 7 x 160mm, 8 x 160mm, 9 x 160mm, 10 x 160mm and 12 x 160mm. This set comes in the Medium ToughCase® ready to fix to the top of your existing Tstak case/tough case system. The DEWALT ToughCase+ Accessory Storage solutions have premium features to help keep drilling and fastening bits organized. The system includes four container sizes; the Small Bulk Storage Container, Small ToughCase®+ Container, Medium.