The Vaunt Endurance 10 piece cross tip drill bits set is built to last in the toughest materials The Cross-tip design ensures that all 4 cutting edges work at the same time to increase durability, overall lifetime and to provide an even drilling action. Special flute geometry for increased waste removal. All this adds up to a very efficient, hard-wearing drill bit Contains the most popular 5 sizes 2 x 5.5 x 160mm 2 x 6.5 x 160mm 2 x 7.0 x 160mm 2 x 8.0 x 160mm 2 x 10.0 x 160mm 1 x Canvas storage roll This Vaunt SDS plus 20mm chisel and point dropped forged steel construction maximises strength and durability and increases overall lifetime, Suitable for all SDS machines with rotation stop