CORTOOL Drill Bits Set, Reduced Shank High Speed Steel Black & Gold Drill Bit with 1/2" Shank, HSS M2 Drill Bit for Metal and Steel, Silver and Deming Drill Bit - 8PCS Reduced Shank Drill Bit Set Product Description: Premium Material - Crafted from High Speed Steel (HSS) in a sleek Black and Gold finish, this drill bit set offers exceptional durability, sharpness, and performance, while effectively reducing friction and maintaining cooler operation. Advanced Coating - Featuring a dual coating of premium gold titanium and black nitride oxide, this set boasts superior lubrication properties for smoother drilling. Additionally, the coating enhances durability and corrosion resistance compared to standard black surfaces. Optimized Design - The drill bits are designed with a 135-degree split point, promoting increased cutting speed and accuracy by facilitating self-centering and preventing walking. This design also ensures efficient chip and particle removal, while the split point tip enhances wear resistance. The 135-degree angle allows for drilling through hard materials without the need for a pilot hole, producing smaller chips to minimize clogging. Comprehensive Set - This set includes 8 pieces of 6-inch long silver & deming drill bits, conveniently stored in a heavy-duty aluminum case for easy transport and organization. Sizes range from 9/16” to 1”, covering a wide range of drilling needs. Versatile Application - Suitable for drilling a variety of materials including steel, copper, aluminum, brass, hardwoods like oak and maple, engineered wood products like MDF and pine, as well as plastics such as PVC, polycarbonate, acrylic, ABS, nylon, and composite materials.