Triumph Twist Drill 094149 Reduced Shank Drill Bit

Product Description

The TRIUMPH TWIST DRILL 094149 is a reduced shank twist drill bit designed for general-purpose drilling in metal, wood, and similar materials. The bit measures 49/64 inch (0.7656 inch decimal) in diameter with a 1/2 inch Weldon flat shank that locks securely in compatible chucks and holders to prevent slippage under torque. Constructed from high-speed steel (HSS) with an oxide finish, it features a 118-degree split point for reliable self-starting and reduced walking on entry. Overall length is 6 inches. Three flats on the Weldon shank provide positive drive engagement, making this bit suited for production drilling and repetitive operations.

This drill bit is intended for use in drill presses, milling machines, and hand-held power tools equipped with 1/2 inch Weldon-style tool holders. The reduced shank design allows a larger-diameter cutting edge to be driven by a 1/2 inch chuck or collet, extending the range of machines that can run this size without requiring a larger spindle. It cuts right-hand with a regular spiral flute, and is classified as a general-purpose tool appropriate for machinists, maintenance technicians, pipefitters, and mechanical contractors working in light to medium fabrication environments.

Key Features

• 49/64 inch (0.7656 inch) cutting diameter with 1/2 inch reduced Weldon flat shank
• 118-degree split point for self-starting entry and reduced thrust requirement
• High-speed steel construction for durability across a broad range of workpiece materials
• Oxide finish provides mild corrosion resistance and lubricity
• 3-flat Weldon shank prevents rotation and pull-out in compatible holders
• Right-hand cut with regular spiral flute for efficient chip evacuation

Compatibility

Designed as a general-purpose replacement or working-stock drill bit for use with 1/2 inch Weldon flat shank tool holders and compatible drill presses or milling machine spindles.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician. Secure the Weldon shank fully in the tool holder with set screws bearing against the flats before operation. Ensure the machine spindle is fully stopped and de-energized before inserting or removing the bit. Do not exceed the spindle speed rating appropriate for the workpiece material and bit diameter.