31/64" Cobalt Straight Shank Drill Bit - Hanson

The Hanson 63131 31/64" Cobalt Straight Shank Drill Bit is engineered for demanding drilling tasks in professional automotive and industrial environments. Its M-35 5% cobalt alloy construction delivers superior heat and wear resistance, allowing technicians to efficiently bore through challenging materials like stainless steel, hardened steel, and high-strength alloys where standard HSS bits struggle. This professional-grade tool ensures reliable performance and extended service life for critical drilling operations.

Key Features

• M-35 Cobalt Alloy Construction: Manufactured from M-35 5% cobalt high-speed steel, this drill bit offers exceptional heat and abrasive resistance for boring through tough materials including stainless steel, cast iron, titanium, and hardened fasteners.
• Precision 31/64" Diameter: Ground to a true 31/64" diameter, ensuring accurate and consistent hole sizes for precise fitment of bushings, sleeves, and custom fixtures.
• 135-degree Split Point: The 135-degree split point reduces feed pressure for easier penetration without causing work hardening, eliminating the need for a pilot hole.
• Optimized Drilling Performance: Features an optimized point and heavy-duty spiral flute design for efficient chip evacuation and reduced bit walking, promoting cleaner, more controlled drilling on various surfaces.
• Extended Service Life: The cobalt composition and durable cutting geometry help maintain edge sharpness over time, reducing the need for frequent bit changeouts in high-volume applications like fleet maintenance and engine work.

Applications

This drill bit is ideal for professional automotive repair and fabrication tasks, including drilling through brackets, crossmembers, engine plates, exhaust flanges, suspension hardware, and heavy-duty mounting points on passenger vehicles, light/medium-duty trucks, and fleet equipment. It is also well-suited for industrial settings and machine shops requiring precise 31/64" holes in steel, stainless steel, and cast materials for jigs, fixtures, and production runs.

Specifications

• Manufacturer: Hanson
• Model Number: 63131
• Nominal Diameter: 31/64 inch
• Shank Type: Straight
• Overall Length: 6.1 in
• Weight: 0.25 lb
• Package Dimensions: 6.1 x 0.6 x 0.6 in