Left-Hand Mechanics Cobalt HSS Drill Bit - 7/32 In - Hanson

The Hanson 30514 Left-Hand Mechanics Cobalt HSS Drill Bit, 7/32 In., is a professional-grade tool designed for the challenging demands of automotive and industrial repair. Engineered from M-42 8% cobalt high-speed steel, this drill bit provides superior durability and performance, specifically aiding in the extraction of broken or seized fasteners. Its specialized left-hand rotation helps to loosen compromised bolts and studs as the pilot hole is drilled, making it an essential component for any technician's toolkit.

Key Features

• Premium M-42 Cobalt HSS Construction: Manufactured from M-42 8% cobalt high-speed steel, this drill bit offers enhanced hardness, extreme heat, and abrasive resistance, extending tool life in hard materials like stainless steel, cast iron, and titanium alloys.
• Efficient Chip Ejection: A heavy-duty spiral flute design promotes rapid and effective chip removal, which minimizes heat buildup and prevents clogging during drilling.
• Reduced Torque Design: Shorter cutting lips are engineered to reduce torque, facilitating smoother penetration in high tensile strength materials without placing excessive strain on the tool or operator.
• Precision 135-Degree Split Point: The 135-degree split point reduces the need for heavy feed pressure, allowing for quicker and easier penetration while preventing work hardening and ensuring accurate, walk-free starts.
• Left-Hand Rotation for Extraction: The reverse cutting action of the left-hand spiral is specifically designed to grip and back out seized or broken bolts, studs, and other fasteners during the drilling process, preparing them for screw extractors.

Applications

This professional-grade left-hand drill bit is an invaluable tool for mechanics and industrial technicians. It is particularly effective when used in conjunction with screw extractors for removing stubborn broken bolts, studs, and other compromised fasteners in critical situations. Its robust construction and specialized design make it suitable for drilling into challenging materials such as stainless steel, cast iron, and various hardened alloys commonly encountered in vehicle repair, machinery maintenance, metal fabrication, and general industrial environments.