Triumph 046620 5/16" Screw Machine Length Drill, 135 Degree Split Point, Round Shank, Style T4C, Cobalt, High Speed Steel, Bronze Oxide

This Cobalt drill has a 135° split point and a bronze oxide finish are designed for precise starts and superior heat resistance. Their heavy-duty construction provides added durability for tough drilling applications.

Features:

• Bronze surface treatment for high lubricity
• Made with premium grade cobalt HSS to drill harder materials
• Self centering 135° split-point for reduced thrust requirements and minimized walking
• Cobalt drills can drill approximately 30% faster than HSS drills
• Cobalt drills can cut harder materials than HSS drills

Best Material Application:

• Steel
• Cast Iron
• Stainless Steel