APPLICATION-Precision drilling in hard metals, stainless steel, alloy steel, etc. (and soft materials like acrylic, plastic, wood, etc.)-High-density hardwoods (rosewood, teak, etc.)-Composite boards & carved components, detailed craft carving & mortise-tenon joinery-Woodworking DIY/furniture making/artistic carvingABOUT THIS PRODUCT-M42 cobalt high-speed steel 10mm drill bits, with a cobalt content 8%, deliver superior hardness and durability. Known for outstanding wear and heat resistance, as well as high crack resistance, these bits excel in drilling high-strength and difficult-to-machine metals.-Gold finish is engineered to improve twist drill operation through key properties: exceptional wear resistance from increased hardness. These combined effects significantly enhance durability and output.-The 135-degree point design significantly reduces bit wandering, ensuring precise starts and smooth drilling in tough materials such as hardened and stainless steel.SPECIFICATION-Cutting Diameter: 10mm-Flute Length: 88mm (3.46")-Overall Length: 132mm (5.2")-Cutting Angle: 135°-Package: 2 packs of cobalt drill bitsNOTE-Maintain 90° perpendicular to the workpiece-Start at low speed (500-800 RPM), then adjust-Use cutting fluid to effectively reduce temperature-Always wear safety goggles and secure the workpiece
