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Fein VARIO Drill/Driver Twist Drill 5/16 Inch (3/8 Inch Thread) 63111048010

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63111048010
$42.95
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Fein VARIO TiAlN-Coated 5/16" Twist Drill for 3/8" Threading The Fein VARIO 5/16" twist drill is a heavy-duty industrial pilot bit specifically engineered to create the precise hole diameter required for 3/8" tapping applications. Constructed from premium high-strength tool steel and hardened to an exceptional 64 HRC, this drill is designed to thrive in high-impact, high-torque environments. Unlike standard bits, it features specialized cutting geometries that are fully compatible with impact wrench systems, enabling rapid hole preparation in high-tensile materials. The Titanium Aluminum Nitride (TiAlN) coating provides a formidable thermal barrier and a low-friction surface, allowing the bit to maintain its sharpness even when drilling at high speeds in steels up to 130 ksi. This tool is a critical component for structural metalworkers and industrial fabricators who require a durable, heat-resistant solution for drilling through alloyed steels, aluminum, and brass.

Features
  • Optimized 5/16" Diameter: Precision-sized to serve as the ideal pilot drill for 3/8" threads, ensuring proper thread engagement.
  • Advanced TiAlN Coating: Features a high-performance Titanium Aluminum Nitride coating that resists thermal breakdown and reduces friction for cooler, faster drilling.
  • Impact Wrench Compatible: Specially engineered to handle the percussive forces and high torque of power impact drivers without shattering.
  • Ultra-Hard 64 HRC Steel: Forged from superior high-strength tool steel for maximum edge retention and industrial-grade longevity.
  • 130 ksi High-Tensile Rating: Designed to penetrate unalloyed and alloyed steels with tensile strengths up to 130 ksi, as well as aluminum and brass.
  • High-Speed Efficiency: The coating’s thermal stability allows for aggressive feed rates and higher RPMs than standard HSS bits.
  • Industrial Durability: Built to withstand continuous use in demanding shop environments, significantly reducing tool replacement costs.
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