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The TRIUMPH TWIST DRILL 033309 is a 9/64 inch (0.1406 inch decimal) high speed steel mechanics drill bit designed for demanding metal removal applications. Built to the T1M series jobber-length standard, it features a 135-degree split point that starts on contact without center-punching, reducing walking on hard or coated surfaces. The oxide finish provides mild lubricity and corrosion resistance during use. With an overall length of 2-5/8 inches and a flute length of 1-9/16 inches, this bit fits standard drill chucks and magnetic drill setups used by machinists, pipefitters, and maintenance technicians.
This bit is suited for drilling alloy steel, carbon steel, and similar ferrous workpiece materials in production and maintenance environments. The right-hand spiral flute design, parallel web configuration, and web-thinned geometry work together to reduce thrust requirements and improve chip evacuation in through-hole applications. It is appropriate for benchtop drill presses, handheld electric drills, and magnetic base drills where a jobber-length bit is specified. It is sold individually per package with a minimum order quantity of 12 units.
Designed as a standard jobber-length replacement or production drill bit for use in drill presses, handheld drills, and magnetic base drills accepting a straight-cylindrical shank in the 9/64 inch diameter range.
This bit is installed and replaced by machinists, maintenance mechanics, pipefitters, and general tradespeople. Always secure the shank fully in the chuck and tighten before operation. Power down and de-energize the drill before changing bits. Use appropriate cutting fluid for extended runs in alloy steel to manage heat buildup and extend tool life.
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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