EZARC M35 Cobalt Step Drill Bit for Metal 1/4"-3/4" | 9 Step Sizes, Hex Shank, Coated with AlTiN

• 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. For continuous operation, add cutting oil or coolant before use. Due to the larger cutting angles, the startup speed may be slower

• Select the appropriate step size — Choose the step size matching your material thickness. Use a drill with a 1/4" hex shank for quick attachment.
• Apply cutting oil or water — Before extended drilling, spray cutting oil or water to cool the bit, reducing heat and prolonging tool life.
• Start drilling at slow speed — Begin with a slow, steady drill speed to ensure accuracy. Increase speed gradually as the cut progresses.
• Use steady pressure and coolant — Maintain consistent pressure, and keep coolant flowing for best results. Stop once the desired depth is reached.

Typical situations where EZARC M35 Cobalt Step Drill Bit for Metal 1/4"-3/4" | 9 Step Sizes helps — illustrative scenarios, not customer reviews.