The Tivoly machine drill bit UNF 1/4", HSS-E5 with 5% cobalt is engineered for precision drilling of clearance holes in metal, specifically for applications requiring unified fine (UNF) threads. Manufactured from high-speed steel enhanced with cobalt, this drill bit delivers excellent durability, increased hardness, and superior heat resistance. Its 35° helix angle ensures fast and efficient chip removal, contributing to smoother operation and high-quality results in industrial machining environments. Designed to DIN 371 standards, it offers reliable compatibility and performance in professional machine drilling setups.
• Made from high-speed steel with 5% cobalt (HSS-E5) for extended tool life and resistance to wear
• Complies with DIN 371 standards for machine drills
• Suitable for drilling clearance holes for 1/4" UNF (Unified National Fine, 28 TPI) fasteners
• 35° helix angle optimizes chip evacuation and improves drilling speed
• Standard 1/4 inch (approx. 6.35 mm) diameter with straight shank design
• Optimized for use in milling machines, drill presses, and CNC machines
• Precise tip geometry for accurate hole positioning (118° point angle, typical for DIN 371)
This machine drill bit is intended for professional machinists, toolmakers, and metalworkers who require precise and durable tools for drilling UNF clearance holes. It is ideal for use in industrial workshops, manufacturing facilities, and engineering environments where accurate preparation for fine-threaded fastener assembly is essential.
SKU: 962205100140280
EAN: 8420609341205