Triumph Twist Drill 012655 Drill Bit Wire Size 55 Hss

Product Description

The TRIUMPH TWIST DRILL 012655 is a wire gauge size 55 jobber length drill bit manufactured from M7 high speed steel with an oxide and gold coating. It is designed for high-performance drilling in alloy steel, carbon steel, and wood. The bit features a 135-degree split point for self-centering starts, reducing walking on hard surfaces without a center punch. At 0.0520 inches in diameter and 1.875 inches overall length, it is a compact, precision bit suited for tight-tolerance work. HVAC technicians, electricians, machinists, and general trades installers use this size for small-diameter pilot holes and wire-clearance bores.

This drill bit is used in light industrial and commercial applications where small-diameter, high-precision holes are required. The T2HD series is rated for heavy-duty use and built for repeated cycling through hard ferrous metals and softer materials alike. It is well suited to production drilling environments where consistent hole quality and bit longevity matter. The straight-cylindrical shank fits standard three-jaw drill chucks without adapters, making it compatible with handheld drills and bench-top drill presses commonly used across trades.

Key Features

• Wire gauge size 55 with 0.0520-inch decimal diameter for precision small-bore applications
• 135-degree split point with web-thinned, tapered web for self-centering entry and reduced thrust
• M7 high speed steel construction rated for alloy steel, carbon steel, and wood
• Oxide and gold coating for surface hardness and corrosion resistance
• Regular spiral flute with 0.875-inch flute length for efficient chip evacuation in short-depth holes
• Straight-cylindrical shank fits standard three-jaw chucks without adapters

Compatibility

Designed as a direct-fit replacement or addition for any application requiring a wire gauge size 55, 0.0520-inch diameter jobber length drill bit with a straight-cylindrical shank. Primary workpiece materials include alloy steel, carbon steel, and wood per manufacturer specification.

Installation Notes

Installation and use should be performed by a qualified tradesperson familiar with rotary cutting tools and applicable workplace safety standards. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before drilling. Do not exceed the rated speed range for the material being drilled, and allow the bit to cool or apply cutting fluid when drilling through ferrous metals to extend tool life. Inspect the cutting edge before each use and replace any bit showing chipping or excessive wear.