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#21 135° Black & Gold Oxide HD ThunderBit® (12 pack) Triumph Twist Drill About This Item: Enhance your drilling efficiency with the #21 135° Black & Gold Oxide HD ThunderBit® by Triumph Twist Drill. This premium grade high-speed steel drill bit features a 135° split point for precise drilling, while the black and bronze oxide coating ensures durability and longevity. Ideal for use in various materials including iron, steel, and alloys, this heavy-duty construction ThunderBit® guarantees exceptional performance. Specifications: Part Number: 12621 Size: #21 Decimal Equivalent: .1590 Flute Length: 2-1/8" Overall Length: 3-1/4" Features: Point: 135° Split Point Material: Premium Grade High Speed Steel Coating/Finish: Black and Bronze 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: Discover the excellence of Triumph Twist Drill, a renowned manufacturer with over 60 years of experience in crafting top-quality tools. Operating from a state-of-the-art 70,000 square foot facility in Ch
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🇺🇸 Ship from USA · On Agora since 2025
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