High-speed steel (HSS) step drill bits with double-slotted conical cutter – Diameters from 5 mm to 35 mm – Titanium coating

High-quality material: Made of high-quality HSS, the titanium coating ensures extreme durability and reduces friction and heat. The titanium drill bit is particularly suitable for machining copper and aluminum parts, cast steel, spring steel, cast iron, iron, and other metallic materials.
Easy drilling: Mark the hole locations, and the double-flute design makes drilling faster and smoother. Surface depth gauges ensure precise drilling.
Professional HSS step drill design for precision drilling of holes of various sizes from 5 mm to 35 mm in diameter, offering optimal speed and accuracy. You can perform a single drilling of large holes without needing to replace the drill bit and pilot hole.
Laser-engraved sizes: The sizes are laser-engraved into the metal so they won't wear down even after repeated use, facilitating precise drilling.
Robust and stable, the special titanium coating gives the HSS step drill a surface hardness up to 600% greater than that of conventional drill bits.