EZARC Step Drill Bit For Metal, 3/16''-7/8'' Spiral Flute Step Drill Bit 1PC, Wear-Resistant AlTiN Coated For Metalworking

1 C-CURVE EDGE 2 NITRIDE COATED 3 COBALT HSS 4 THREE SPIRAL FLUTE 5 1/4 INCH HEX SHANK 1 GALVANIZED PIPE 2 CAST IRON 3 STAINLESS STEEL 4 ALUMINUM ALLOY 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. 【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 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. Due to the larger cutting angles, the startup speed may be slower