81149 High-speed Steel Drill Bit, #49, 2 In. Oal, Straight Shank

The Irwin 81149 #49 high-speed steel drill bit is designed for precise hole drilling in applications requiring non-fractional sizing. This jobber-length bit delivers exact hole dimensions for tapping operations in metal, making it ideal for automotive repair, maintenance and restoration work, as well as general-purpose drilling in stationary and portable drill presses.

Constructed from M-2 high-speed steel, this bit combines strength, heat resistance and wear resistance to handle demanding drilling tasks. The straight shank ensures compatibility with standard drill chucks, while the spiral flute design provides reliable performance for drilling work.

Features and Benefits

• M-2 High-Speed Steel Construction: Delivers durability and consistent performance with excellent heat and wear resistance for long tool life.
• Precise #49 Sizing (0.073 in Diameter): Creates exact holes for tapping and applications where non-fractional hole sizes are critical.
• Spiral Flute, 4-Flute Design: Provides efficient drilling performance across various applications and materials.
• Straight Shank: Fits standard drill chucks on portable drills and stationary drill press equipment without adapters.
• Jobber Length (2 in Overall): Versatile length suitable for general drilling tasks and accessible hole depths on most workpieces.
• Bright Finish: Resists rust and remains highly visible during work, reducing the risk of misplacement.

Specifications

• Brand: Irwin
• Model: 81149
• Bit Diameter: #49 (0.073 in)
• Overall Length: 2 in
• Shank Type: Straight
• Shank Diameter: 0.073 in
• Material: High-Speed Steel M-2
• Flute Style: Spiral, 4-Flute
• Quantity: Single bit