4 Piece Cobalt Stepped Point Drill Bit Set 1/4'', 5/16, 3/8'' and 1/2'' in Plastic Pouch Kit

Sizes 1/4", 5/16, 3/8" and 1/2" in Plastic Pouch Kit.Made from durable M35 cobalt steel with a 5% cobalt composition and featuring a gold finish, stepped point drill bits are engineered for high performance and longevity. The cobalt construction provides exceptional strength and heat resistance, making these bits ideal for drilling tough, high-tensile-strength materials such as stainless steel, titanium, and inconel. With a 135Deg split point tip, they offer fast penetration and precise drilling without wandering, while their ability to withstand high red hardness allows for drilling speeds up to 30% faster than conventional M2 high-speed steel bits.Designed with a smooth, gradual cutting action, stepped bits reduce resistance and prevent binding, unlike standard bits that cut the full diameter at once and often get stuck. The self-centering tip eliminates the need for pilot holes, ensuring precise starts immediately. By removing material in steps, they generate less heat and friction for cooler, cleaner drilling and extended tool life.For added convenience, these versatile bits can drill, deburr, and enlarge holes of various sizes, effectively replacing multiple standard bits. A 3-flat shank design ensures an extra secure hold in your chuck, preventing slipping during use. Perfect for thin materials like sheet metal, plastics, and laminates, they deliver clean, precise cuts without tearing, cracking, or binding, making them an essential tool for professionals and DIYers alike.

• • 4 Piece Kit comes in plastic pouch case and includes sizes 1/4, 5/16, 3/8 and 1/2
• • Step design drills in stages for smooth, clean cuts without binding
• • Self-centering tip ensures precise starts with no need for pilot holes
• • Drills various materials including steel, aluminum, cast iron, brass, acrylics, and other metals.
• • Made of M35 cobalt steel, which is stronger, tougher, and more heat-resistant than standard HSS, making it last longer and drill harder materials