• 135° split point for accurate centering and fast penetration• Precision ground point, flutes, body, clearance and drill diameter for ultimate accuracy and performance•Special Hi-Molybdebum tool steel•NAS 907C Screw Machine Length.
• Nitride coating creates a case hardened surface that is resistant to rust, heat and extends tool life.• Cryogenic treatment at -300º F increases toughness while reducing brittleness.•.