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PATIKIL 2.5mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 3 Pack 2.5mm 3

Quick facts

  • Brand: ‎PATIKIL
  • Price: USD 8.49
  • Rating: 4.70 (150 reviews)

The PATIKIL 2.5mm drill bit set is built for demanding drilling tasks where standard bits can struggle. Made from M42 high-speed steel formulated with 8% cobalt, these jobber bits are designed for hardness, wear resistance, and heat resistance—especially helpful when working with tougher metals.

Each bit features a 135° split point and a straight shank for stable starts and dependable handling. The titanium nitride (TiN) coating helps resist oxidation and corrosion, supporting longer service life in frequent-use scenarios.

This 3-pack is a practical pick for shops and DIYers who need a consistent 2.5mm size on hand for stainless steel, iron, aluminum, copper, plastics, or wood. For best results, keep the drill at a 90° angle to the workpiece and reduce speed as material hardness increases.

  • 3-pack of 2.5mm (0.1 in ≈ 3/32 in) jobber drill bits; 25mm flute length; 56mm overall length
  • M42 high-speed steel with 8% cobalt for high hardness, wear resistance, and heat resistance
  • Titanium nitride (TiN) coating helps resist oxidation/corrosion and extend service life
  • 135° split point designed for more controlled starts on harder materials
  • Suitable for stainless steel and other materials including iron, aluminum, copper, plastics, and wood