3.50 – Stub Drill Cobalt

• Cobalt Stub drills offer increased hardness, toughness and better wear resistance compared to regular HSS
• Gold Oxide surface finish provides a polished finish and prevents chip building, galling and welding on a workpiece
• 135° split point for fast penetration and accurate starting (self-centering) which eliminates “Walking” and reduces the thrust force needed
• The short flute and overall length provide maximum rigidity, hole accuracy, and tool life
• Cobalt drills are suitable for harder material including alloy steels, Stainless Steel and other difficult to drill materials