Trend SNAP/HD1/SET Trend Snappy hex drill bit set 16pc Hex drill set metric 16 pceHex shank drill bit set in fabric tool holder for drilling wood, plastics and metals.Eight HSS fully ground TiN coated twist drill bits, sizes 2, 2.5, 3, 4, 5, 6, 7 and 8mm for wood, metal and plastic.Eight carbon steel dowel (Brad point) roll fluted drill bits, sizes 3, 4, 5, 6, 7, 8, 9 and 10mm for deep boring of wood.Unique tool holder includes removable inner section with Velcro elasticated cartridges to accept an extra 8 hex power drive shanks and 8 insert bits.Specification-Shank Diameter=1/4 inch hexSize=123mm x 170 mm