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Fein VARIO Drill/Driver Twist Drill #F (5/16 Inch Thread) 63111047010

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63111047010
$34.95
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Fein VARIO TiAlN-Coated #F Twist Drill for 5/16" Threading The Fein VARIO #F twist drill is a high-performance industrial pilot tool specifically sized to prepare holes for 5/16" threading applications. Forged from ultra-high-strength tool steel and hardened to 64 HRC, this drill bit is engineered to withstand the extreme mechanical stresses of impact-driven drilling. It features a specialized geometry that is fully compatible with impact wrench systems, allowing for significantly faster hole preparation in tough substrates. The Titanium Aluminum Nitride (TiAlN) coating provides a critical thermal barrier and low-friction surface, enabling the bit to maintain its cutting edge even at high speeds in high-tensile steels up to 130 ksi. This drill is the ideal companion for the VARIO tapping system, providing the precision and durability required for structural steel fabrication, aluminum machining, and heavy-duty industrial maintenance.

Features
  • Precision #F Sizing: Specifically engineered as the optimal pilot drill size for creating 5/16" threaded holes.
  • Advanced TiAlN Coating: Features a high-grade Titanium Aluminum Nitride layer for superior heat dissipation and reduced friction at high RPMs.
  • Impact Wrench Compatible: Designed with ruggedized cutting geometries and a shank built to handle the percussive torque of power drivers.
  • Ultra-Hard 64 HRC Steel: Manufactured from premium high-strength tool steel for maximum wear resistance and extended service life.
  • 130 ksi Material Capacity: Capable of drilling through high-strength alloyed and unalloyed steels, as well as non-ferrous metals like aluminum and brass.
  • Thermal Stability: The specialized metallurgy ensures the bit retains its tempered hardness even under the intense heat of dry drilling.
  • Low-Wear Performance: Engineered for industrial-scale use, significantly reducing the frequency of bit replacements in high-production environments.
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