Cobalt Drill Bits for Metal, M35 Metal Hard Steel, 135 Split Point Fast No-Slip Drilling, 5 Pieces Basic DIY Set with Storage Case 3.0, 4.0, 5.0, 6.0, 8.0mm

Built for Hard Steel – M35 Cobalt Strength: Made from premium M35 cobalt high-speed steel (5% cobalt), delivering HRC 63–66 hardness and superior heat resistance. Cuts through stainless steel, alloy steel, and other tough metals without dulling or overheating. 135° Split Point – No Walking, Faster Starts: Self-centering 135° split point tip prevents slipping on metal surfaces. Drill accurately without pilot holes, saving time while producing clean, precise holes in hard materials. One Set, Multiple Materials: Designed for stainless steel, cast iron, alloy steel, and titanium, while also handling aluminum, copper, plastic, and wood with ease. A true all-purpose drill bit set for home, workshop, or jobsite use. 5-Piece Basic DIY Set – Most Used Sizes, Ready to Go: Includes the most commonly used sizes (3mm, 4mm, 5mm, 6mm, 8mm), perfect for everyday drilling tasks. No unnecessary extras—just the sizes you actually need for quick repairs, DIY projects, and general use. Durable Design – Smooth, Cooler Drilling: Fully ground twist design with dual flutes ensures fast chip removal, reducing heat and friction. Hardened through high-temperature quenching for long-lasting performance. Packed in a sturdy storage case for easy organization.