PATIKIL 4mm M35 Cobalt Drill Bit 5 Pack - Stainless Steel

Upgrade your toolbox with the PATIKIL M35 Cobalt High-Speed Steel drill bit set. Designed for demanding tasks, these 4mm bits are engineered to handle hard metals with ease. The M35 steel contains between 4.50% and 5.50% cobalt, providing the hardness and wear resistance needed for professional machining environments. These bits are particularly effective when working with stainless steel. The 135 degree split point tip helps prevent walking and ensures more accurate starts. To increase the lifespan of your tools, each bit features a gold finish that improves corrosion resistance. Whether you are a professional machinist or working on DIY projects, this 5-pack provides a reliable solution for drilling through tough materials without sacrificing precision.