Fein VARIO 82 Degree Drill/Driver Countersink 3/4 Inch 63901086010

Details

Fein VARIO TiAlN-Coated 82Â° Countersink 3/4" The Fein VARIO 3/4" countersink is a heavy-duty industrial chamfering tool engineered for large-diameter deburring and fastener recessing in high-torque environments. Constructed from premium high-strength tool steel and hardened to an extreme 64 HRC, this tool is specifically designed to handle the mechanical stresses of impact-driven operation. The specialized cutting geometry, paired with a Titanium Aluminum Nitride (TiAlN) coating, ensures the tool maintains structural integrity and edge sharpness even when operating at high speeds in materials with tensile strengths up to 130 ksi. This countersink is the professional's choice for achieving clean, chatter-free 82-degree recesses in structural steel, alloyed metals, aluminum, and brass.

Features

Professional 82Â° Chamfer: Precision-ground to provide the standard angle required for industrial countersunk fasteners, ensuring a perfectly flush surface.
Advanced TiAlN Coating: The Titanium Aluminum Nitride layer serves as a thermal shield, allowing for high-speed operation while drastically reducing friction and tool wear.
Impact Wrench Compatible: Features a ruggedized shank and reinforced cutting edges designed to absorb the percussive forces of high-torque impact drivers.
Ultra-Hard 64 HRC Construction: Forged from high-strength tool steel for maximum resistance against abrasive wear and deformation in heavy-duty applications.
130 ksi Material Capacity: Optimized for machining high-tensile unalloyed and alloyed steels, as well as non-ferrous metals like aluminum and brass.
Thermal Stability: Engineered to retain its tempered hardness even under the intense heat generated during high-speed dry machining of tough alloys.
Smooth Finish Geometry: Designed to eliminate chatter and provide a clean, consistent finish on large-diameter holes.

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