Hertel 83246207 Carbide Die Drill Bit 0.0785 in No. 47

Product Description

The HERTEL 83246207 is a solid carbide straight-flute die drill bit designed for precision drilling in hard and abrasion-resistant workpiece materials. Built from C2-grade carbide with a bright finish, it measures 0.0785 inches in diameter and corresponds to wire gauge size No. 47. The 140-degree notched point with web thinning reduces entry force and improves centering on tough alloys. Two right-hand flutes provide chip clearance during through-hole and blind-hole operations. This bit is suited for machinists, tool-and-die technicians, and trade professionals who require tight-tolerance drilling in ferrous and specialty metals.

This die drill bit is intended for use in ferrous and high-strength alloy applications including chrome alloy, heat-treated alloy, nickel alloy, stainless steel, carbon steel, and titanium alloy. It is a standard choice for die work, precision machining, and close-tolerance hole placement in production and maintenance environments. The straight-flute geometry makes it effective in materials that work-harden quickly, where a conventional spiral flute may chatter or deflect.

Key Features

• Solid C2-grade carbide construction for hardness and wear resistance in alloy steels and titanium
• 0.0785-inch diameter with a tight tolerance of +0.0000 to -0.0005 inches for precision fitment
• 140-degree notched point improves self-centering and reduces thrust force at entry
• Web-thinned design lowers cutting resistance and extends tool life in hard materials
• Straight-flute geometry suited to work-hardening alloys including stainless and nickel alloys
• Bright finish with no coolant-through requirement for standard dry or mist-assisted operations

Compatibility

Designed as an OEM-style replacement or direct-use die drill bit for precision drilling applications in chrome alloy, heat-treated alloy, nickel alloy, stainless steel, steel, and titanium alloy workpieces.

Installation Notes

Installation and use should be performed by a qualified machinist or tool-and-die technician familiar with carbide tooling. Secure the bit firmly in a compatible drill chuck or collet rated for the shank diameter before operation. Carbide tooling is brittle — avoid side-loading or using the bit as a lever, as this can cause chipping or fracture. Power down and de-energize all equipment before changing tooling.