Cobalt drill steel set 8 parts Cobalted drill blade set for demanding metal and workshop use. The blades made of HSS-Co steel contain 5 % cobalt, which improves their wear resistance and suitability for drilling hard materials.The pieces are suitable for alloyed and non-alloy steel, stainless steel, titanium alloys, cast iron and bronze. They can also be used to drill wood and plastic. Full grinding supports the making of sharp and straight holes, and 130° tip facilitates effective cutting. Sharps: 14, 15, 16, 16, 6, 19, 20, 0,5, 22 and 25,5 mm.Technical dataTerrends: 8Material: HSS-Co steel, 5 % CobaltStep diameters: 14-25,5mmShort angle: 130°Cut direction: Right-handedStanding: cylindrical arm, 1/2” (starting 13 mm)The sales kit includes a blade set and wooden storage box.Quick delivery (Travel Service).