Hertel 84581263 Wire Size 52 Hss Jobber Drill Bit

Product Description

The HERTEL 84581263 is a wire gauge size 52 jobber-length drill bit designed for precision holemaking in metal and general industrial applications. Built from high speed steel with an oxide coating, this bit features a 135-degree split point that reduces walking on entry and lowers the thrust required to start a hole. The overall length is 1-7/8 inches with a flute length of 7/8 inches and a straight cylindrical shank diameter of 0.0635 inches. The web-thinned, tapered web construction keeps cutting action efficient and reduces heat buildup at the tip. This is a right-hand, regular spiral, two-flute bit graded for heavy-duty use.

This drill bit is suited for production machining, tool and die, maintenance, and repair operations where accurate small-diameter holes are required. Its wire gauge sizing makes it a standard choice for machinists, millwrights, and industrial mechanics working to close-tolerance specifications in steel, cast iron, and similar ferrous materials. The bit conforms to NAS specification designation standards, making it appropriate for aerospace, defense, and precision manufacturing environments where dimensional accountability is required.

Key Features

• Wire size 52 (0.0635 inches decimal equivalent) for close-tolerance small-diameter drilling
• 135-degree split point reduces walking and lowers entry thrust
• High speed steel construction with oxide coating for improved wear resistance
• Web-thinned tapered web for efficient chip evacuation and reduced heat
• Right-hand regular spiral flute for standard drill press and CNC use
• NAS specification designation for verified dimensional compliance

Compatibility

Designed as a standard jobber-length drill bit compatible with any drill press, CNC machining center, or hand drill fitted with a chuck capable of accepting a 0.0635-inch straight cylindrical shank.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or tradespeople familiar with small-diameter drilling operations. Secure the shank fully in the chuck and verify runout before starting the cut. Use appropriate cutting fluid for the material being drilled to extend tool life and maintain hole quality. Avoid excessive feed pressure, which can deflect or break bits at this diameter.