Triumph Twist Drill 094159 Reduced Shank Drill Bit Hss

Product Description

The TRIUMPH TWIST DRILL 094159 is a reduced shank drill bit designed for drilling operations that require a larger cutting diameter than a standard chuck can accommodate. The bit measures 59/64 inch (0.921 inch decimal) in cutting diameter and uses a 1/2 inch Weldon shank with three flats to prevent slipping in compatible holders. Manufactured from high speed steel with a coated finish, this bit suits metalworking, fabrication, and general industrial drilling applications. The 118-degree split point angle promotes accurate starting and reduces walking on flat or curved surfaces. Licensed trades and industrial mechanics are the primary installers and users.

This bit is built for use in production and maintenance environments where oversized holes are required and a reduced shank allows mounting in standard 1/2 inch chucks or Weldon-style tool holders. The T9FHD series designation indicates a heavy-duty reduced shank configuration suited for steel, iron, and other ferrous and non-ferrous materials. It is well suited for shop drill presses, milling machines, and heavy-duty hand-held drilling equipment that accepts Weldon shanks.

Key Features

• 59/64 inch cutting diameter with 0.500 inch Weldon shank for use in standard 1/2 inch holders
• 118-degree split point angle for accurate starting and reduced thrust
• High speed steel construction for durability across ferrous and non-ferrous materials
• Three-flat Weldon shank design prevents bit rotation in the holder
• Coated finish for added wear resistance and chip flow
• Right-hand spiral flute with 3 inch flute length and 6 inch overall length

Compatibility

Designed for use with 1/2 inch Weldon-style tool holders and compatible drill chucks; fits Series T9FHD tooling configurations for reduced shank drilling applications.

Installation Notes

Installation is performed by machinists, tool and die technicians, or industrial maintenance mechanics. Secure the Weldon shank fully into the holder and tighten set screws against the flats before operation. Ensure spindle speed is appropriate for the material and bit diameter per standard machining reference tables. Inspect the cutting edges and shank flats for wear or damage before each use.