Triumph Twist Drill 094134 Reduced Shank Drill Bit Hss

Product Description

The TRIUMPH TWIST DRILL 094134 is a reduced shank drill bit designed for drilling applications that require a larger cutting diameter than the shank that fits the chuck. The bit cuts at 17/32 inch (0.5312 inch decimal), while the Weldon shank measures 1/2 inch in diameter, allowing it to seat in standard 1/2-inch chuck setups. Built from high speed steel with a coated finish, it handles the heat and wear demands of production drilling in metal, wood, and plastic. The 118-degree split point promotes accurate starts and reduces walking on entry. Overall length is 6 inches with a maximum drilling depth of 3 inches.

This bit is a fit for trade and industrial environments where reduced shank geometry solves chuck-size limitations without sacrificing cut diameter. The Series T9FHD Weldon shank with three flats locks securely in set-screw tool holders, preventing rotation during high-torque cuts. Right-hand spiral flutes with a regular helix evacuate chips efficiently in through-hole and blind-hole drilling. Machinists, millwrights, pipefitters, and maintenance technicians will find this bit useful for structural steel, pipe flange, and general fabrication work.

Key Features

• 17/32 inch (0.5312 inch) cutting diameter with a 1/2-inch reduced Weldon shank for use in standard 1/2-inch holders
• 118-degree split point for accurate positioning and reduced thrust on entry
• High speed steel construction for heat resistance during metal drilling
• Coated finish extends cutting edge life and reduces friction
• Three-flat Weldon shank prevents slippage in set-screw tool holders
• Right-hand spiral flutes with regular helix for consistent chip evacuation

Compatibility

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

Installation Notes

A licensed machinist or qualified maintenance technician should install and operate this bit. Secure the Weldon shank fully in the tool holder and tighten all set screws before operation. Ensure the spindle is fully stopped before inserting or removing the bit. Use appropriate cutting fluid or coolant as required by the base material, and wear rated eye protection in compliance with applicable shop safety standards.