Hertel 85703866 Jobber Drill Bit No. 9 Hss 0.1960 in

Product Description

The HERTEL 85703866 is a jobber-length drill bit in No. 9 wire size (0.1960 inches decimal equivalent), manufactured from high speed steel with a bright uncoated finish. It features a 118-degree standard point angle, a two-flute spiral configuration with a regular spiral type, and a straight-cylindrical shank measuring 0.1960 inches in diameter. Overall length is 3.625 inches with a flute length of 2.4375 inches. The web is thinned and tapered for improved chip evacuation and reduced thrust during drilling. This is a general-purpose bit suited for metalworking, fabrication, and maintenance applications where a standard wire-gauge drill is required.

This bit is designed for right-hand cutting in general-purpose drilling operations. It is appropriate for use in ferrous and non-ferrous metals, plastics, and wood in light to medium production environments. Machinists, maintenance technicians, pipefitters, and sheet metal workers commonly use No. 9 wire-gauge bits when drilling for clearance holes, tapping preparation, and similar precision hole-making tasks. The straight-cylindrical shank is compatible with standard drill chucks across benchtop drill presses, hand drills, and mill spindles.

Key Features

• No. 9 wire size with 0.1960 inch decimal diameter for precise hole sizing
• 118-degree standard point angle for general-purpose drilling across common materials
• High speed steel construction provides durability in metal drilling applications
• Bright uncoated finish maintains tight dimensional tolerances on the cutting edge
• Web-thinned tapered web reduces drill thrust and improves chip clearing
• Two-flute regular spiral design promotes efficient chip evacuation

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 0.1960 inch straight-cylindrical shank, including benchtop drill presses, portable hand drills, and milling machine spindles.

Installation Notes

Secure the shank fully in the drill chuck and verify concentricity before operation. Always wear appropriate eye protection and follow applicable shop safety procedures when drilling metal. Use cutting fluid or coolant when drilling ferrous metals to extend tool life, noting this bit does not support coolant-through delivery. Inspect the cutting edges for wear or chipping before each use and replace if the point is damaged.