115PCS 5% Cobalt M35 HSS Twist Drill Bit Set 135° Split Point Drill Bit

115PCS 5% Cobalt M35 HSS Twist Drill Bit Set 135° Split Point Drill Bit. Cobalt Alloy Composition: Solid M35 material with 5% Cobalt for superior hardness and heat resistance. Aggressive Split Point Design: 135-degree split point ensures faster cutting and longer life on hard materials. Comprehensive Size Range: Includes 115 pieces covering 1/16-1/2 inch, No.1-60, and A-Z letter sizes. Durable Metal Storage Case: Comes with a strong fitted metal box for organized storage and protection. Versatile Material Application: Ideal for drilling cast iron, heat-treated steel, stainless steel, and other hard materials. Standard Straight Shank: Features ANSI standard straight shank for compatibility with various chucks. OEM and ODM Services: Offers full, minor, and flexible customization from samples or designs. Wear and Heat Resistance: Engineered to withstand high temperatures and wear during demanding drilling tasks.