Triumph Twist Drill 011522 Cobalt Drill Bit 11/32 in

Product Description

The TRIUMPH TWIST DRILL 011522 is a jobber-length drill bit designed for high-performance drilling in alloy and alloy steel workpieces. Built from cobalt with a gold oxide coating, this bit delivers the heat resistance and wear durability required for hard-material applications. The 135-degree split point promotes self-centering entry, reducing walking and the need for a center punch on most surfaces. At 4-3/4 inches overall length with a 3-7/16 inch spiral flute, it fits standard drill chucks and handles depths typical of jobber-length work. This bit is suited for use by machinists, maintenance techs, and fabricators working with tough ferrous metals.

The 011522 is intended for drilling alloy steel and similar hard ferrous materials in industrial maintenance, fabrication, and machine shop environments. The straight-cylindrical shank at 11/32 inch diameter seats securely in keyed or keyless chucks. The web-thinned, tapered web configuration reduces thrust load during entry, making it practical for both drill press and hand-drill applications where consistent hole quality in hard stock is required.

Key Features

• Cobalt construction with gold oxide coating for heat resistance and extended tool life in hard metals
• 135-degree split point for self-centering, walk-free entry without a center punch
• Web-thinned tapered web reduces thrust and improves chip clearance
• Right-hand cut with regular spiral flute for efficient material evacuation
• Straight-cylindrical shank compatible with standard drill chucks
• Heavy-duty grade rated for alloy and alloy steel workpieces

Compatibility

Designed as an OEM-style replacement or direct-fit jobber-length drill bit for use in standard 11/32 inch chuck-compatible drill presses, CNC drilling setups, and handheld power drills within the T1C series lineup.

Installation Notes

Installation and use should be performed by qualified machinists or trained maintenance personnel familiar with proper drill bit seating and speed-feed selection for cobalt tooling. Ensure the chuck is fully tightened and the workpiece is securely clamped before operation. Apply appropriate cutting fluid when drilling hard alloy steels to manage heat buildup and extend bit life. Inspect the cutting edge and web condition before each use and replace if chipping or excessive wear is observed.