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The TRIUMPH TWIST DRILL 011506 is a cobalt jobber-length drill bit designed for high-performance drilling in tough materials. Built to Series T1C standards, this bit features a 135-degree split point for self-centering entry and reduced walking on hard surfaces. The gold oxide coating adds surface hardness and heat resistance. At 3/32 inch (0.0938 inch decimal) in diameter with a 2-1/4-inch overall length, it is sized for precision work in alloy and alloy steel workpieces. Machinists, tool-and-die workers, and maintenance technicians handling hard-metal applications are the primary installers.
This drill bit suits industrial and maintenance shop environments where alloy steel and similar hard metals are regularly machined. The right-hand spiral flute with regular spiral type provides efficient chip evacuation in deep holes. The straight-cylindrical shank fits standard drill chucks without adapters. Typical applications include drilling fastener clearance holes, pilot holes, and precision bores in alloy steel components where a standard HSS bit would wear prematurely. The web-thinned, tapered web configuration reduces thrust force at the cutting tip.
Designed as an OEM-style replacement or direct-use cobalt jobber drill bit for applications involving alloy and alloy steel materials, fitting any standard drill chuck accepting a 3/32-inch straight-cylindrical shank.
Installation is performed by machinists or maintenance technicians using standard drill presses, CNC machines, or hand-held power drills with compatible chucks. Secure the shank fully in the chuck before operation and confirm the workpiece is properly clamped. Use appropriate cutting fluid or coolant for alloy steel to manage heat buildup, even though this bit does not support coolant-through delivery. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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