• 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/ Gold Oxide•Left Hand Heavy Duty Jobber Drills.
•.•Manufactured to NAS 907J specifications.• Manufactured from M42 high speed steel containing 8% cobalt which increases high hot hardness.• Cobalt drills require rigidly held positive feed drilling equipment.
• 1/16 - 1/4 by 64ths, 5/16 - 1/2 by 16ths• Precision ground point, flutes, body, clearance and drill diameter for ultimate accuracy and performance•Special Hi-Molybdebum tool steel/ Gold Oxide•Left Hand Heavy Duty Jobber Drills•Contains: 1/16" - 1/4" by 64ths, 5/16" - 1/2" by 16ths.