Left Hand 5/16" Super Primalloy Cryo-Gen N Maintenance Length Drill Bit

Reduced length enhances rigidity, strength, and resistance to breakage. A patented deep thermal cycle, down to -300°F, refines the molecular structure, reduces stress, and boosts durability. Cryogenic treatment minimizes brittleness and extends tool life. Nitride treatment hardens cutting surfaces for superior edge retention, faster hole creation, and longer service life. Left-hand rotation can back out fasteners, eliminating the need for screw extractors. A super heavy-duty 135° split point eliminates center punching. Premium 'M' series alloy steel offers exceptional wear resistance and longevity. Precision-ground flats on the shank prevent slippage and damage. (Sizes under 3/16" lack flatted shanks). Manufactured in the U.S.A.

• Reduced Length Enhances Rigidity: Maintenance length design boosts strength and reduces breakage
• Advanced Cryogenic Treatment: Deep thermal cycle refines molecular structure, enhances durability
• Enhanced Molecular Stability: Cryogenic treatment reduces brittleness, extends tool life
• Nitride Treatment for Edge Retention: Case-hardened cutting surfaces ensure superior edge retention and faster hole creation
• Effortless Broken Fastener Removal: Left-hand rotation backs out fasteners, eliminating the need for screw extractors
• Heavy-Duty 135° Split Point: Super heavy-duty 135° split point eliminates center punching
• Premium Alloy Steel for Long-Lasting Wear Resistance: M Series Alloy Steel provides exceptional wear resistance and extended tool life
• Precision Ground Flats for Slippage Prevention: Flats on the shank eliminate drill slippage and protect the drill and chuck
• Proudly Manufactured in the USA