Do it Cobalt 9/64" Drill Bit (Pack of 4)

B3R4 B2(New) Do it Cobalt 9/64" Drill Bit (Pack of 4)-------------------------------* Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium.* Manufactured to National Aerospace standard 907.* 135 split point is self-centering and reduces thrust.Features and further details-------------------------------* Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools, performance is similar to uncoated tools.