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Fein VARIO Drill/Driver Twist Drill Set 63111051010

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63111051010
$129.95
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Fein VARIO 3-Piece Impact-Rated Twist Drill Set (#F, 5/16", 27/64") The Fein VARIO Twist Drill Set is an elite industrial kit featuring three precision-sized pilot bits—#F, 5/16", and 27/64"—specifically selected to prepare perfectly gauged holes for 5/16", 3/8", and 1/2" threading. Forged from ultra-high-strength tool steel and heat-treated to a rock-solid 64 HRC, these bits are engineered to endure the aggressive percussion and high-torque loads of impact wrench systems. Each bit is finished with a state-of-the-art Titanium Aluminum Nitride (TiAlN) coating, creating a high-performance thermal barrier that excels under the extreme heat generated by high-speed drilling. Optimized for high-tensile materials up to 130 ksi, this set provides a reliable, low-wear solution for penetrating alloyed steels, aluminum, and brass with surgical precision and exceptional tool longevity.

Features
  • Advanced TiAlN Coating: Features a high-grade Titanium Aluminum Nitride layer that provides superior heat dissipation and a low-friction surface for high-speed operation.
  • Impact Wrench Compatible: Engineered with specialized, ruggedized cutting geometries and shanks designed to withstand the rotational impacts of power drivers.
  • Ultra-Hard 64 HRC Steel: Manufactured from premium high-strength tool steel for maximum edge retention and resistance to abrasive wear in structural alloys.
  • 130 ksi Material Capacity: Specifically designed to efficiently drill through high-strength unalloyed and alloyed steels, aluminum, and brass.
  • Precision Pilot Sizing: Includes #F, 5/16", and 27/64" diameters, providing the exact pilot holes required for the most common industrial threading sizes.
  • Thermal Stability: The specialized metallurgy ensures the bits maintain their tempered hardness even under the intense thermal loads of dry drilling.
  • Low-Wear Performance: Engineered for industrial-scale use, significantly reducing tool replacement cycles and increasing shop productivity.
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