Hertel 84579598 Jobber Drill Bit 1/16 in Tin Hss

Product Description

The HERTEL 84579598 is a 1/16 inch diameter jobber-length drill bit designed for general-purpose holemaking in metal, wood, and composite materials. It is manufactured from high speed steel with a titanium nitride (TiN) coating that extends cutting edge life and reduces friction during drilling. The 135-degree split point geometry provides self-centering action and reduces the thrust required to start a hole, minimizing walking on smooth surfaces. The web-thinned, tapered web construction reduces cutting resistance. This bit is sized and proportioned for use in standard drill chucks on corded or cordless drill motors, drill presses, and CNC equipment.

This jobber drill bit is suited for light-duty holemaking applications across residential, commercial, and light industrial job sites. The 1/16 inch diameter makes it appropriate for pilot holes, clearance holes for small fasteners, and precision drilling tasks where a compact bit is required. It is used by electricians, HVAC technicians, plumbers, and general contractors who need a reliable small-diameter bit for sheet metal, light steel, copper tubing flanges, and similar materials.

Key Features

• TiN coating increases surface hardness and reduces heat buildup at the cutting edge
• 135-degree split point self-centers on contact, reducing need for a center punch
• Web-thinned, tapered web lowers cutting resistance and improves chip clearance
• Right-hand spiral flute configuration moves chips away from the cutting zone efficiently
• Heavy-duty grade high speed steel construction for durability in production use
• Straight-cylindrical shank fits standard 3-jaw chucks without adapters

Compatibility

Designed as a standard jobber-series replacement drill bit compatible with any 3-jaw drill chuck that accepts a 1/16 inch straight-cylindrical shank.

Installation Notes

Install and remove drill bits only when the drill motor or drill press is fully powered down and the chuck key is removed from the chuck. Secure the workpiece with a clamp or vise before drilling to prevent rotation. Use cutting fluid or coolant when drilling ferrous metals to extend bit life and reduce heat. Discard bits with chipped cutting edges or visible heat discoloration, as compromised geometry increases the risk of bit breakage at small diameters.