Triumph Twist Drill 094162 Reduced Shank Drill Bit

Product Description

The TRIUMPH TWIST DRILL 094162 is a reduced shank drill bit designed for drilling applications that require a standard 1/2 inch chuck to accept a larger diameter bit. The cutting diameter measures 31/32 inches (0.9688 inches decimal) while the Weldon shank reduces to 1/2 inch, allowing it to seat securely in common drill chucks and milling machine spindles. Built from high speed steel with a coated finish, this bit holds up under the heat and friction generated during metal drilling. The 118-degree split point promotes accurate starting without a center punch and reduces walking on flat stock. Overall length is 6 inches with a maximum drilling depth of 3 inches. Machinists, maintenance mechanics, and tool-and-die tradespeople are the primary users.

This bit fits production shop, maintenance, and fabrication environments where 31/32 inch through-holes or stepped holes are required in steel, aluminum, cast iron, and similar materials. The Weldon shank with three flats is well suited for milling machine spindles and drill press chucks equipped with a set-screw style holder, providing positive torque transfer and eliminating shank slippage during heavy-feed drilling. The reduced shank design makes this bit practical on machines limited to a 1/2 inch capacity without sacrificing the full 31/32 inch cut diameter.

Key Features

• 31/32 inch (0.9688 inches) cutting diameter on a 1/2 inch Weldon shank for use in standard 1/2 inch chucks
• 118-degree split point for accurate positioning and reduced thrust load
• High speed steel construction handles heat generated in ferrous and non-ferrous metal drilling
• Weldon shank with 3 flats provides positive torque transfer and prevents shank rotation
• Coated finish extends tool life by reducing friction and heat buildup
• Right-hand cut, regular spiral fluting for efficient chip evacuation

Compatibility

Designed for use with 1/2 inch Weldon-style drill chucks and set-screw spindle holders on drill presses, milling machines, and magnetic-base drills. Part of the TRIUMPH TWIST DRILL T9FHD series of reduced shank drill bits.

Installation Notes

Installation is performed by qualified machinists or maintenance mechanics. Secure the Weldon shank fully into the holder and tighten all set screws against the flats before powering the machine. Always power down and lock out the machine before changing bits. Do not exceed the recommended maximum drilling depth of 3 inches; retract and clear chips frequently to prevent flute packing and overheating.