Hertel 84577865 Jobber Drill Bit Letter B 118 Hss

Product Description

The HERTEL 84577865 is a jobber-length drill bit sized to Letter B (0.2380 inches decimal equivalent), designed for general-purpose drilling in metal, wood, and plastic. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers reliable performance in standard production and maintenance drilling applications. The 118-degree standard point angle is the conventional geometry for versatile use across a wide range of materials. With a 4-inch overall length and a 2-3/4-inch flute length, this bit provides adequate depth capacity for most jobber-length drilling tasks. It is installed by machinists, maintenance technicians, and trade professionals working with hand drills, drill presses, or CNC equipment.

This drill bit is suited for general-purpose drilling in light industrial, commercial, and trade applications. The straight-cylindrical shank accepts standard three-jaw chucks without adapters, making it a straightforward drop-in for most drill presses and portable power drills. The regular spiral flute and tapered web configuration with web thinning help reduce thrust and improve chip evacuation. Typical use cases include drilling pilot holes, clearance holes, and through-holes in ferrous and non-ferrous materials during mechanical assembly and repair work.

Key Features

• Letter B size — 0.2380 inches decimal equivalent for precise fit to standard hole tolerances
• 118-degree standard point angle for general-purpose use across a wide range of materials
• High-speed steel construction provides adequate hardness and toughness for production drilling
• Bright uncoated finish — no coating to flake or chip in high-friction applications
• Web-thinned tapered web reduces drilling thrust and improves chip clearance
• Right-hand cut, two-flute spiral design compatible with all standard drill presses and hand drills

Compatibility

Designed for use in any standard three-jaw drill chuck accepting a 0.2380-inch straight-cylindrical shank, suitable for drill presses, hand drills, and CNC drilling equipment used in general-purpose trade and light industrial applications.

Installation Notes

This bit is installed by machinists, HVAC technicians, plumbers, and general trade professionals using standard drill chucks. Secure the shank fully in the chuck and confirm it is centered before drilling. Always wear appropriate eye protection and secure the workpiece before operation. Use cutting fluid when drilling ferrous metals to extend bit life and reduce heat buildup.