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5/16" 135° Black Oxide HD Jobber Drills (6 pack) Triumph Twist Drill About This Item: Upgrade your drilling game with the Triumph Twist Drill 5/16" 135° Black Oxide HD Jobber Drills. Crafted from premium grade high-speed steel with a durable black oxide finish, these heavy-duty construction drills are designed for precision and longevity. Specifications: Size: 5/16" Decimal Equivalent: .3125 Flute Length: 3-3/16" Overall Length: 4-1/2" Features: Point: 118° Point Material: Premium Grade High Speed Steel Coating/Finish: Black Oxide Other: Heavy-Duty Construction For use in: Iron, Cast Steel, Low and Medium Carbon Steel, High Alloy Steel, Stainless and PH Tough, Medium and High-Tensile Strength Alloys About this Manufacturer: Triumph Twist Drill, a leading manufacturer for over 60 years, produces top-quality drills like the 5/16" 135° Black Oxide HD Jobber Drills. With a state-of-the-art facility and cutting-edge machinery in Chisholm, MN, they deliver exceptional performance tools for professionals and enthusiasts alike. Type: High-Speed Drill Bits
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🇺🇸 Ship from USA · On Agora since 2025
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