Triumph Twist Drill 094153 Reduced Shank Drill Bit Hss

Product Description

The TRIUMPH TWIST DRILL 094153 is a reduced shank twist drill bit built for cutting through metal, wood, and composite materials in demanding shop and field environments. It carries a 53/64 inch (0.8281 inch decimal) cutting diameter paired with a 1/2 inch Weldon shank, allowing it to seat securely in standard 1/2 inch chucks and holders without slipping under torque. The bit is manufactured from high speed steel with a coated finish for extended wear resistance. A 118-degree split point starts on contact and reduces walking without requiring a center punch. Overall length is 6 inches with a maximum drilling depth of 3 inches.

This bit is suited to production and maintenance drilling in industrial, HVAC fabrication, plumbing rough-in, and general mechanical service applications. The reduced shank design lets a larger cutting diameter run in a standard 1/2 inch chuck, making it practical for techs who need oversized holes without a dedicated large-capacity drill press. The three-flat Weldon shank locks firmly in set-screw holders, eliminating rotational slippage during high-torque cuts. Right-hand spiral flutes clear chips efficiently in through-hole drilling operations.

Key Features

• 53/64 inch cutting diameter (0.8281 inch decimal) on a 1/2 inch reduced Weldon shank
• 118-degree split point for self-starting cuts with minimal bit walk
• High speed steel construction with coated finish for wear and heat resistance
• Three-flat Weldon shank prevents rotational slippage in set-screw holders
• Right-hand cut with regular spiral flutes for consistent chip evacuation
• Maximum drilling depth of 3 inches, 6 inch overall length

Compatibility

Designed for use in 1/2 inch Weldon shank tool holders and compatible drill presses, magnetic drills, and milling machines that accept set-screw style shank retention.

Installation Notes

Install and remove this bit with the machine powered off and the chuck or holder fully arrested. Seat the Weldon shank fully into the holder and tighten all set screws before operation. Use appropriate cutting fluid or coolant for the material being drilled to prolong bit life, noting that this bit does not have internal coolant delivery. Follow applicable shop safety standards and wear eye protection during all drilling operations.