Hertel 84578350 Jobber Drill Bit Size 80 Hss

Product Description

The HERTEL 84578350 is a wire gauge size 80 jobber length drill bit machined from high speed steel with a bright uncoated finish. It is designed for general-purpose drilling in metal, plastic, and similar materials where a small-diameter hole is required. The 118-degree standard point angle provides reliable centering on entry, and the spiral flute geometry promotes chip evacuation throughout the cut. At 0.0135 inches in diameter and 0.75 inches overall length, this bit is sized for precision small-hole work in production and repair applications. Machinists, tool-and-die technicians, and maintenance mechanics are the primary users.

This bit is suited for use in drill presses, CNC machines, hand-held electric drills, and manual pin vises where wire gauge size 80 holes are required. Typical applications include instrument work, printed circuit board drilling, small fastener clearance holes, and precision metalworking tasks that demand consistent hole diameter at the low end of the decimal-inch range. It is sold as a single unit with a minimum order quantity of 12 pieces per order.

Key Features

• Wire gauge size 80, 0.0135-inch diameter — suited for precision small-hole drilling
• 118-degree standard point angle with web-thinned geometry for reliable entry and reduced thrust
• High speed steel construction provides durability across metal, plastic, and composite materials
• Bright uncoated finish — compatible with cutting fluids and oils without coating interaction
• Right-hand spiral flute promotes chip evacuation in short through-hole applications
• Straight-cylindrical shank fits standard collets, chucks, and pin vises

Compatibility

Designed as a general-purpose replacement or stock bit for any application requiring a wire gauge size 80 straight-shank jobber length drill bit with a standard 118-degree point.

Installation Notes

Secure the bit firmly in a drill chuck or collet, verifying that shank runout is within acceptable tolerance before starting the spindle, as small-diameter bits are sensitive to misalignment. Use a center punch or spot drill to establish a starting point and prevent walking on hard or smooth surfaces. Apply appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality. Replace the bit at the first sign of dulling or chipping, as regrinding bits at this diameter is not practical in most field settings.