5/16" LONG COBALT THREADED - Brown Aviation Tool

The Brown Aviation Tool BAT11312 is a professional-grade 5/16" Long Cobalt Threaded Drill Bit engineered for superior performance in demanding drilling applications. Crafted from high-strength cobalt steel, this drill bit is designed to tackle hard, tough, and high tensile strength materials with exceptional durability and heat resistance, ensuring a significantly longer tool life compared to conventional high-speed steel bits. Its precision-engineered threaded shank allows for secure attachment in specialized adapters, making it an indispensable tool for technicians working in automotive, industrial, and aerospace environments.

Key Features

• Premium Cobalt Construction: Made from durable cobalt steel, this drill bit offers superior hardness and excellent heat resistance, allowing for efficient drilling through challenging materials such as stainless steel, titanium, and high-strength alloys.
• Threaded Shank Design: Features an industry-standard 1/4-28 UNF threaded shank (Type D adapter style) for secure, slip-free attachment in threaded adapters, crucial for precision work.
• Enhanced Drilling Precision: The 135-degree heavy-duty split point tip ensures fast penetration and accurate drilling, minimizing bit "walking" and promoting clean, precise holes from the start.
• Extended Reach: The "long" design provides the necessary reach for drilling in deep or hard-to-access areas, common in intricate assembly and repair tasks.
• Professional-Grade Durability: Manufactured to NAS 965 Type D specifications, guaranteeing a professional-grade tool built for reliability and consistent performance in rigorous use.
• Made in the USA: This threaded shank drill bit is proudly manufactured in the USA, reflecting a commitment to quality and craftsmanship.

Applications

The BAT11312 5/16" Long Cobalt Threaded Drill Bit is ideal for professional mechanics and technicians engaged in a wide range of tasks. It excels in drilling through hard metals and alloys often found in modern vehicle chassis, engine components, and industrial machinery. Its threaded shank design makes it particularly suitable for angle, offset drilling, or confined spaces where traditional chucked bits are impractical. Common use cases include fastener installation, structural repairs in automotive and aircraft maintenance, and general fabrication in tough materials within manufacturing and production settings.

Specifications

• Manufacturer: Brown Aviation Tool
• Model Number: BAT11312
• Product Name: 5/16" Long Cobalt Threaded Drill Bit
• Diameter: 5/16"
• Material: Cobalt Steel (M42 8% Cobalt)
• Shank Type: Threaded (1/4-28 UNF Class 2A)
• Point Angle: 135° Split Point
• Standards: Manufactured to NAS 965 Type D specifications