The Widin Carbide Drill Single Margin Internal Coolant 8XD TiAlN Coated - 7.7mm is a precision drilling tool engineered for engineers, machinists, and hobbyists who demand reliable deep-hole performance in challenging materials. Built with a solid carbide body and a TiAlN coating, it delivers strong wear resistance and the ability to run at higher speeds while keeping edges sharp. The single-margin design provides stability, helping you stay on target through every hole.

With an 8xD length, it supports deeper holes with accuracy, and an internal coolant channel helps flush chips and keep the cutting edge cool. This combination minimizes heat build-up and helps ensure consistent results across multiple holes and materials.

• Rigid carbide core: Delivers rigidity and long tool life, reducing deflection and ensuring consistent hole size across jobs.
• TiAlN coating for wear and heat resistance: Maintains edge sharpness at higher speeds, resists wear in tough materials, and extends tool life.
• Internal coolant and single-margin design for stable drilling: Efficient chip evacuation and edge cooling with a design that minimizes wandering, enabling clean, accurate holes, especially at depth.

This drill helps you complete deeper holes more reliably, reduce downtime from tool wear, and achieve repeatable hole quality from first pass to last. By combining a robust carbide core, a heat-tolerant TiAlN coating, and an integrated cooling channel with a stable margin, it supports faster cycle times and consistent results in a wide range of materials.