5/16" Left-Hand Mechanics Cobalt HSS Drill Bit - Hanson

Designed for professional automotive and industrial applications, the Hanson 31520 Left-Hand Mechanics Cobalt HSS Drill Bit delivers robust performance in challenging materials. Constructed from M-42 8 percent cobalt high-speed steel, this 5/16 inch drill bit offers superior abrasive resistance, making it ideal for tough metals and high tensile strength materials often encountered by professional technicians. Its specialized design facilitates efficient drilling and material removal, ensuring reliable operation in demanding workshop environments.

Key Features:

• M-42 8% Cobalt HSS Construction: Provides exceptional wear and abrasive resistance, extending tool life when drilling into hardened steels, stainless steel, and other difficult-to-machine alloys.
• Heavy-Duty Spiral Flute: Engineered for rapid chip ejection, preventing material buildup and reducing heat, which contributes to faster and more efficient drilling.
• Shorter Cutting Lips: Minimizes torque requirements, enabling smoother drilling in high tensile strength materials and reducing strain on both the tool and the operator.
• 135-Degree Split Point: Ensures precise self-centering and reduces feed pressure, allowing for easier penetration without the risk of work hardening the material.
• Left-Hand Rotation: Specifically designed for use with screw extractors, facilitating the removal of broken fasteners without further tightening them.

Applications:

This Hanson 5/16 inch left-hand drill bit is an essential tool for mechanics and industrial professionals. It excels in applications requiring the removal of broken bolts, studs, and screws, especially when paired with screw extractors. Its robust M-42 cobalt construction makes it suitable for drilling into a wide range of materials, including cast iron, stainless steel, titanium, and other alloys commonly found in automotive engines, machinery repair, and manufacturing settings. It is a reliable choice for drilling into work-hardened surfaces and other demanding metalworking tasks where standard HSS bits may falter.