Hertel 02500122 Jobber Length Drill Bit Set 29 Pc Hss

Product Description

The HERTEL 02500122 is a 29-piece jobber length drill bit set designed for metalworking and general-purpose drilling applications. Each bit is manufactured from high-speed steel (HSS) with an oxide finish that provides basic lubricity and corrosion resistance during cutting operations. The set covers fractional inch sizes from 1/16 inch through 1/2 inch in 1/64-inch step increments, giving technicians a complete range for most common hole sizes. All bits feature a straight shank and a 135-degree split point for self-centering starts without a center punch. The set ships in a metal or plastic index case for organized storage and job-site transport.

This set is suited for metalworking trades and general maintenance applications where a full fractional inch range is needed on a single job. Typical install or service scenarios include drilling pilot holes, clearance holes, and tap-drill holes in ferrous and non-ferrous materials. The heavy-duty HSS construction handles repetitive drilling in steel, aluminum, and similar materials. Electricians, HVAC technicians, plumbers, and general contractors will find this range practical for panel knockouts, bracket mounting, and equipment rough-in work.

Key Features

• 29 jobber length drill bits covering 1/16 inch to 1/2 inch in 1/64-inch increments
• High-speed steel construction rated for heavy-duty metalworking use
• 135-degree split point for self-centering starts and reduced walking
• Oxide finish for added lubricity and basic corrosion resistance
• Straight shank compatible with standard drill chucks
• Organized index case in metal or plastic for job-site storage

Compatibility

Designed for use with any standard drill chuck accepting straight-shank bits up to 1/2 inch. Suitable for handheld drills, drill presses, and milling machines used in metalworking and multipurpose applications.

Installation Notes

Install and remove bits only after the drill or press is powered down and the chuck has stopped completely. Use cutting fluid or lubricant when drilling ferrous metals to extend bit life and reduce heat buildup. Secure workpieces with a vise or clamp before drilling to prevent rotation and injury. Inspect bits for wear or damage before each use and replace any bit showing cracks, excessive runout, or dull cutting edges.