These new high quality Faithfull roll forged flute twist drills, made with a black oxide coating, manufactured from HSS in accordance with the DIN338 standard. Suitable for use in alloy steels, carbon steels and hardened alloy steel. A cutting lubricant is recommended. Although designed for cutting metal, they are also suitable for drilling holes in plastic, timber, chipboard and plywood. Supplied in a robust plastic case securing and protecting the drills. The contents can easily be viewed through the flip action transparent lid. Do not miss! Sizes: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5 and 10mm.