The DeWALT DT4938-QZ metal drill bit set from DeWALT, produced by DeWALT Accessories, is a high-quality solution for precise and fast drilling of hard metals. These drill bits are made of HSS-E high-speed steel with 5% cobalt content, providing exceptional resistance to heat and wear. They are specially designed for working with high-alloy steels and metals with tensile strength up to 1100 N/mm², including stainless steel. Thanks to their special No-Walk tip, the drill bits ensure easy penetration into the material without pre-centering and clean holes without burrs. The tri-flat shank prevents the tool from slipping in the chuck, ensuring optimal grip and stability during operation. The golden oxide coating protects against overheating and further extends the service life of the drill bits. Features: Brand: DeWALT;Material: HSS-E high-speed steel with 5% cobalt content;Diameter: 8 mm;Total length: 117 mm;Working length: 72 - 75 mm;Shank type: tri-flat (cylindrical with three flat surfaces);Suitable for: high-alloy steel and metals with tensile strength up to 1100 N/mm²;Coating: golden oxide;Quantity in the set: 10 pieces;Set weight: 0.37 kg.