Triumph Twist Drill 060412 3/16 in Screw Machine Drill Bit

Product Description

The TRIUMPH TWIST DRILL 060412 is a screw machine length drill bit designed for heavy-duty drilling in demanding applications. It measures 3/16 inch (0.1875 inches) in diameter with an overall length of 2-3/16 inches and a flute length of 1-1/8 inches. The bit is manufactured from high speed steel with a coated finish for added wear resistance. A 135-degree split point reduces walking and lowers thrust requirements at entry. Web thinning with a tapered web configuration further improves cutting efficiency. This bit is well suited for licensed machinists, HVAC technicians, and industrial tradespeople who need a short, rigid bit for confined-space or production drilling.

The 060412 is engineered for right-hand spiral flute cutting with a straight-cylindrical shank that seats securely in standard drill chucks. It is rated for use on superalloys, making it appropriate for production environments and trade applications where harder or more demanding workpiece materials are encountered. The screw machine length provides increased rigidity compared to jobber-length bits, which reduces deflection and improves hole accuracy in short-reach drilling setups. This bit falls within the T4HD series, which is designated as a heavy-duty grade suitable for high-cycle or production drilling operations.

Key Features

• 135-degree split point reduces thrust and minimizes bit walking on entry
• High speed steel construction with coated finish for wear resistance
• Screw machine length provides greater rigidity and reduced deflection versus jobber bits
• Web-thinned tapered web improves chip clearance and cutting performance
• Right-hand spiral flute with straight-cylindrical shank fits standard drill chucks
• T4HD heavy-duty series rated for superalloy and demanding workpiece materials

Compatibility

Designed as a replacement or production-use screw machine drill bit for applications requiring a 3/16 inch diameter hole in superalloys or similarly demanding materials. Fits any standard drill chuck accepting a straight-cylindrical shank at this diameter range.

Installation Notes

This bit is installed and operated by machinists, maintenance technicians, and qualified trade professionals using standard drill presses, CNC equipment, or hand drills. Ensure the chuck is fully tightened and the shank is fully seated before operation. Use appropriate cutting fluid or coolant recommended for the workpiece material to extend bit life and maintain hole quality. Inspect the cutting edges and point before each use and replace the bit if chipping or excessive wear is observed.