PATIKIL 8.5mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 1 Pack 8.5mm 1
A single 8.5mm (≈21/64″) PATIKIL jobber drill bit built for tougher drilling tasks—M42 high-speed steel with 8% cobalt plus a titanium nitride (TiN) coating and a 135° split point for cleaner starts on hard metals like stainless steel.