best drill bit to drill through hardened steel

Provides water for cooling the drill bit during the drilling process. Used to apply cutting oil or drilling wax for lubrication during drilling.Ĭlears away metal chips and debris from the flutes of the drill bit, ensuring smooth cutting.

Helps maintain the sharpness and longevity of drill bits.Ĭreates a precise starting point on the hardened steel, preventing the drill bit from wandering.Īlternative to the center punch, it marks the drilling point accurately. Sulfurized oil or synthetic coolants are recommended.Įssential for protecting yourself: safety glasses, gloves, and ear protection. Lubricates and cools the drill bit, reducing friction and heat buildup. Provides stability and control, especially when drilling large or deep holes in hardened steel. Specifically designed for drilling hardened steel, choose high-speed steel (HSS) or cobalt bits for their durability. Prioritize safety by wearing appropriate safety equipment throughout the drilling process.Īpart from the drill bits, here are some additional tools and accessories that can enhance your drilling experience: Tool/Accessory.

Cooling and lubricating the drilling area prevents overheating and extends the life of the drill bit.Follow proper drilling techniques, including starting with a pilot hole, applying steady pressure, and clearing metal shavings.Choose the appropriate drill bit based on material, size, and point angle to optimize drilling performance.

Best drill bit to drill through hardened steel