The CHT383 Clarke Drill Bit Set are cobalt steel drills which offer higher heat and abrasion resistance compared to HSS drills, making them more suitable for use on hardened steel, super alloys, titanium...
The Clarke CHT565 Drill Bit Set issubstantial set of quality HSS drill bits coated with titanium nitride for increased durability & service life. They're ideal for general purpose drilling tasks in most...