Cobalt drill bit set 1-13mm

5% cobalt steel 25-piece drill bit set. Ideal for hard to drill metals such as hardened steel, cast iron, titanium and stainless steel as it is more resistant to high temperatures. Contains: 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, 10, 10.5, 11, 11.5, 12, 12.5 & 13 mm