EZARC Step Drill Bit for Metal, M35 Cobalt Step Drill Spiral Flute Unibit Step Drill Bit (1/4''-3/4'') Wear-Resistant AlTiN Coated, 1/4" Hex Shank for

EZARC Step Drill Bit for Metal, M35 Cobalt Step Drill Spiral Flute Unibit Step Drill Bit (1/4''-3/4'') Wear-Resistant AlTiN Coated, 1/4" Hex Shank for

【C-Profile Design】EZARC step drill bits feature a triple-flute design for increased stability, effectively reducing deviation during the cutting process. Additionally, the 'C-profile' cutting edge ensures smoother cutting and an increased cutting speed 【M35 HSS Step Drill】M35 cobalt high-speed steel, through heat treatment, achieves toughness and bending strength that surpass standard high-speed steel, making this step drill bit more suitable for cutting hard materials 【AlTiN Coating】Step bits coated with aluminum titanium nitride, rated at 89HRC for exceptional hardness and thermal properties. This coating offers superior resistance to heat, wear, and corrosion, with high adhesion and low friction 【Nine Step Sizes】Spiral flute design, featuring nine distinct steps, offers seamless and effective drilling across various thicknesses, eliminating the need for multiple bits. Includes 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" 【Please Note】Material thickness: Suitable for metal sheet up to 1/8" (3 mm) thick and stainless steel sheet up to 1 mm thick. Add cutting oil or use coolant during continuous operation. Due to the larger cutting angles, the startup speed may be slower EZARC M35 Cobalt HSS Step Drill Bit, coated with wear-resistant AlTiN and equipped with a 1/4" hex shank, is designed for metal, stainless steel, aluminum, wood, and plastic. This tool integrates a triple-flute spiral design, optimizing stability and doubling the cutting speed for efficient, deviation-free drilling.

Key Features:
High-Quality Material: M35 cobalt high-speed steel for enhanced hardness and wear resistance.
AlTiN Coating: Offers 89HRC hardness for excellent heat, wear, and corrosion protection.
Triple-Flute Spiral Design: Ensures smoother cutting and faster drilling performance.
Versatile: 9 step sizes from 1/4''-3/4'' allow for multiple drilling needs without changing bits.
For best results, utilize cutting oil or water spray to cool the bit during extended use. The innovative design promises a slower start-up speed due to its large cutting angle, ensuring precision in every project.

This step drill bit is not just a tool but a solution for making drilling tasks more efficient and effective, embodying the essence of professional-grade equipment.