C.K Masonry Hex Drill Bit Set of 5

Forged steel with tungsten carbide tip Optimised design for fast and accurate drilling of concrete, stone & brick With 4 mm hexagonal shaft Contents: each 1 piece of 4 / 5,5 / 6,5 / 7 & 8 mm, Weight: 0.22928075248 pounds, Manufacturer: Carl Kammerling International Limited