The faithfull metric hss drill bit sets are designed for cutting metal however they are also suitable for drilling holes in timber chipboard and plywood the sets have an easy flip open action case with transparent front for easy checking of contents 7 piece m7pset 15 2 3 4 5 55 and 6mm13 piece m13pset 15 2 25 3 32 35 4 42 45 5 55 6 and 65mm