#39 DRILL BIT - Irwin

The Irwin HN81139 #39 Drill Bit is engineered for professional technicians and mechanics requiring precise and durable drilling performance in demanding automotive and industrial applications. Constructed from M-2 High-Speed Steel, this drill bit is designed to deliver reliable, accurate holes across various materials. It serves as an essential component in any professional toolkit where exacting specifications are paramount for successful project completion.

Key Features

• M-2 High-Speed Steel Construction: Manufactured from M-2 HSS, this drill bit offers an excellent combination of strength, heat resistance, and wear resistance, ensuring extended tool life and consistent performance under rigorous use.
• Precision #39 Wire Gauge Size: With a precise 0.0995-inch (2.5273 mm) diameter, this bit is ideal for drilling exact-sized holes, particularly for tapping applications where non-fractional sizes are critical.
• 118° Chisel Point: The standard 118° chisel point facilitates clean starts and is well-suited for general-purpose drilling in a wide range of materials, including metal, plastic, and wood.
• Bright Finish: The bright finish on the drill bit aids in efficient chip evacuation, reducing friction and preventing material buildup during drilling.
• Jobber Length Design: Featuring a jobber length, this drill bit provides a versatile balance of reach and rigidity, making it suitable for both portable and stationary drilling equipment.

Applications

The Irwin HN81139 #39 Drill Bit is a versatile tool for various professional tasks. It is frequently utilized for creating pilot holes for tapping operations, ensuring precise thread formation in metal components. In automotive maintenance and repair, it is suitable for drilling in vehicle materials such as metal, plastic, and fiberglass for tasks like wiring, drainage, or mounting. Beyond automotive use, this general-purpose drill bit excels in industrial settings for general fabrication, maintenance, and repair, capable of drilling effectively through different types of metal, plastic, and wood.

Specifications

• Manufacturer: Irwin
• Model Number: HN81139
• Size: #39 Wire Gauge (0.0995 in / 2.5273 mm)
• Material: M-2 High-Speed Steel
• Overall Length: 2-3/8" (60.325 mm)
• Flute Length: 1-3/8" (34.925 mm)
• Point Angle: 118°