The HSS Cobalt DIN 338 Drill Bit 4.5 x 80mm 10pk are high-performance bits that excel in materials with a high strength above 800 N/mm. This drill bit is perfect for working with special alloys, solder resistant steel, and stainless steel V2A-V4A. The HSS Cobalt DIN 338 Drill Bit is profile-ground, designed for right-hand cutting and infused with 5% cobalt. This combination ensures fast drilling progress and a long tool life, making it a reliable choice for your drilling needs. One of the unique selling points of this drill bit is its 135-degree conical section. This feature, along with its cross-ground finish to DIN 1412C (from dia. 3 mm), ensures precision and accuracy in every drilling task. This drill bit is versatile and can be used in all rotary and percussion drilling machines. It's also suitable for machines for mechanical processing, but only for rotary use. This pack includes 10 4.5mm x 80mm HSS DIN 338 Cobalt, Ground, Split Point Drill Bits, ensuring you have enough supply for your projects.Features and Benefits:The HSS Cobalt DIN 338 Drill Bit excels in materials with a high strength above 800 N/mm.Perfect for working with special alloys, solder resistant steel, and stainless steel V2A-V4A.Infused with 5% cobalt, ensuring fast drilling progress and a long tool life. 135-degree conical section and cross-ground finish ensure precision and accuracy.Technical Specification:Drill Diameter: 4.5mmWorking Length: 47mmOverall Length: 80mmMaterial: HSS-EMaterial Composition: 5% Cobalt Point Angle: 135°Finish: Cross-ground finish to DIN 1412C (from dia. 3 mm)Applications: For materials with high strength above 800 N/mm, special alloys, solder resistant steel, and stainless steel V2A-V4A.