Hertel 84578814 Jobber Drill Bit Wire 59 Hss Tin

Product Description

The HERTEL 84578814 is a jobber-length drill bit designed for general-purpose drilling in metal, wood, and plastic. Built from high speed steel with a titanium nitride (TiN) coating, it delivers improved surface hardness and extended tool life compared to uncoated HSS bits. The wire gauge size is 59, equal to 0.0410 inches in decimal. Overall length is 1-5/8 inches with a flute length of 11/16 inches. The standard 118-degree point angle suits a wide range of common shop and field drilling tasks. This bit is a standard item for machinists, maintenance techs, and fabricators working with small-diameter hole requirements.

This drill bit is suited for light-duty drilling applications in production, maintenance, and repair environments. Its compact overall length of 1-5/8 inches makes it appropriate for work in confined areas where standard jobber clearance is sufficient. The straight-cylindrical shank fits conventional 3-jaw chucks on hand drills, drill presses, and CNC drill stations. Right-hand cut and regular spiral flute geometry support efficient chip evacuation during through-hole and blind-hole drilling in soft to medium-hardness materials.

Key Features

• Wire size 59 — 0.0410 inch decimal equivalent for precise small-diameter drilling
• High speed steel construction with TiN coating for increased wear resistance
• 118-degree standard point angle for broad material compatibility
• Two-flute regular spiral with tapered web and web-thinning for easier penetration
• Straight-cylindrical shank fits standard 3-jaw chucks
• Right-hand cut with no coolant-through requirement — suitable for dry drilling

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any drill press, hand drill, or CNC spindle accepting a straight-cylindrical shank at 0.0410 inches in diameter.

Installation Notes

Secure the shank fully in the chuck jaws before drilling and verify runout is within acceptable limits for the application. Ensure the workpiece is clamped or fixtured — never hand-hold small stock during drilling. At this diameter, use low feed pressure and moderate spindle speed to avoid bit deflection or breakage. Always wear appropriate eye protection when operating drill equipment.