Triumph Twist Drill 060422 Screw Machine Drill Bit 11/32

Product Description

The TRIUMPH TWIST DRILL 060422 is a screw machine length drill bit engineered for heavy-duty drilling in demanding trade and industrial applications. Built from coated high speed steel, this bit measures 11/32 inch (0.3438 inches) in diameter with a 135-degree split point that reduces walking and allows clean entry without a center punch. The overall length is 3 inches with a spiral flute length of 1.6875 inches. The web-thinned, tapered web design reduces cutting resistance and improves chip evacuation, making it well suited for production drilling and repetitive operations in tight spaces where a shorter bit length provides better rigidity.

This screw machine length drill bit is used where stub-length rigidity is needed in metalworking, maintenance, and fabrication environments. Its primary rated workpiece material is superalloy, making it appropriate for tough ferrous and high-strength alloy stock. The straight-cylindrical shank fits standard drill chucks without adapters, and the right-hand spiral flute configuration is compatible with conventional clockwise-rotation drilling equipment. It is a practical choice for machinists, pipefitters, and maintenance technicians working with hard or abrasive base metals.

Key Features

• 11/32 inch (0.3438 inches) diameter in the T4HD heavy-duty series
• 135-degree split point reduces bit walking on entry
• Web-thinned tapered web lowers thrust requirements and improves chip flow
• Coated high speed steel construction for extended service life in hard materials
• Screw machine length at 3 inches overall provides added rigidity over jobber-length bits
• Rated for superalloy workpiece materials - suited for demanding heavy-duty drilling

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for standard drill chucks accepting a straight-cylindrical shank, suitable for bench drills, drill presses, and hand-held drilling equipment used in metalworking and maintenance trades.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with metal drilling operations. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before operation. Use appropriate cutting fluid or coolant when drilling superalloys or hard metals to manage heat buildup, as dry drilling can shorten tool life significantly. Inspect the bit for chipping or wear before each use and replace if the cutting edges are damaged.