Step Drill Bit for Metal, M35 Cobalt Unibit Step Drill Bit Set 1/8″-7/8″(3Pcs) Wear-Resistant Altin Coated, 1/4 Hex Shank for Metal, Stainless Steel, Aluminum, Plastic. 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. 3 Pcs Step Drill Bit Set? The step drill bits are neatly organized in a compact case for easy transportation and storage. The spiral flutes and stepped design of the drill bits allow for seamless and efficient drilling through various thicknesses. 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 AlTiN COATING STEP DRILL BIT SET. The video showcases the product in use. The video guides you through product setup. The video compares multiple products. The video shows the product being unpacked. 1/4 INCH HEX SHANK. How will AlTiN coating affect the performance of step drills? AlTiN Coating, with a hardness of 89 HRC, offers excellent hardness and thermal properties. It provides great resistance to heat, wear, corrosion and can withstand temperatures up to 900°C. What types of metal can I cut with ezarc step drill bit? You can use EZARC step drills to cut or drill through various metals, including aluminum, brass, copper, cast iron, galvanized pipe, stainless steel, and low-carbon steel. How do I properly use this step drill bit? Ensure the chuck is securely tightened on the power tool. Use low speed and apply light pressure on the workpiece until reaching the desired depth. Lubricate the cutting edge with oil or a water-soluble lubricant to reduce friction, heat, and debris. What is the maximum thickness of the material used? Suitable for metal sheet up to 1/8 (3mm) thick and stainless steel sheet up to 1mm thick. EZARC Step Drill Bit for Your Choice. 4.4 out of 5 stars. Number of Steps/Step Rings. M35 Cobalt High Speed Steel. Please look through our selected quality items to see if you can find what you are looking for or to discover new and exciting things. But we will make sure you receive it in perfect condition(in case of damage on arrival let us know within 2 days for a solution/replacement). Your satisfaction is our #1 priority!