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The TRIUMPH TWIST DRILL 011210 is a 5/32-inch high speed steel mechanics drill bit designed for general-purpose drilling in metal and ferrous materials. It features a 118-degree standard point angle and a right-hand spiral flute that clears chips efficiently during operation. The oxide finish improves lubricity and provides basic corrosion resistance. This is a jobber-length bit with an overall length of 3-1/8 inches and a flute length of 2 inches, giving technicians the reach needed for most standard hole-making tasks. Machinists, maintenance mechanics, and trade professionals reach for this bit when working through cast iron, stainless steel, and carbon steel stock.
This bit suits a wide range of production and maintenance drilling applications in shop and field environments. The straight-cylindrical shank fits standard 3-jaw drill chucks on both hand drills and drill presses without requiring a collet adapter. The general-purpose T1B series designation places it in everyday use scenarios: hole starts, through-holes, and stepped-hole prep in steel fabrication, equipment maintenance, and mechanical assembly work. The tapered web with web-thinning geometry reduces thrust at the cutting tip, which is useful when drilling harder alloys or thinner stock.
Designed as a general-purpose jobber-length drill bit compatible with any standard 3-jaw drill chuck accepting a straight-cylindrical shank at 5/32-inch diameter. Rated for use in cast iron, stainless steel, and steel workpieces.
Secure the shank fully in the chuck and verify concentricity before drilling to prevent bit walk or breakage. Use appropriate cutting fluid or lubricant when drilling stainless steel or hardened alloys to extend tool life. Machinists and maintenance mechanics should match spindle speed to material hardness and bit diameter per standard speeds-and-feeds charts. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point is damaged.
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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