Triumph ThunderBit Drills 1/2" Reduced Shank 3-Flats HSS Black & Bronze Oxide 57/64 (094157)
Triumph 094157 ThunderBit Drills 1/2" Reduced Shank 3-Flats HSS Black & Bronze Oxide 57/64 is a professional-grade drill engineered for precision metalworking and industrial use. Made from high-speed steel (HSS) with black and bronze oxide flutes, this 57/64" drill features a 1/2" reduced shank with 3-flat design for secure chuck grip and consistent torque. With a 6" overall length and a 118° split point, it minimizes walking at the start of the hole, providing accurate, clean holes in metals and alloys.
Durable high-speed steel (HSS) construction ensures long-lasting performance and heat resistance.
Black and bronze oxide flutes reduce friction, resist corrosion, and maintain cutting efficiency.
1/2" reduced shank with 3-flat design provides stable chuck grip and reliable torque transfer.
6" overall length suitable for versatile drilling applications.
118° split point prevents walking for precise hole placement.
Heavy-duty construction increases strength and reduces breakage.
Fe-free formulation prevents contamination when drilling stainless steel.
Produces clean, precise holes in metal, stainless steel, and tough alloys.
3-flat shank ensures stable torque transfer for consistent drilling performance.
Split point reduces walking for accurate starts and precise results.
Durable HSS with black and bronze oxide finish extends tool life.
Heavy-duty construction provides reliability for industrial and professional applications.
Technical Specifications:
Material: High-Speed Steel (HSS)
Finish: Black & Bronze Oxide Flutes
Diameter: 57/64"
Shank: 1/2" Reduced Shank, 3-Flats
Length: 6" Overall
Point Angle: 118° Split Point
Applications: Precision drilling in metal, stainless steel, industrial, automotive, and professional use
Product identification
- Brand: Triumph
- Model / MPN: 94157





