Hertel 85704120 Jobber Drill Bit No. 35 Hss Bright 118 Deg

Product Description

The HERTEL 85704120 is a No. 35 wire gauge jobber length drill bit manufactured from high speed steel with a bright uncoated finish. It delivers a 0.1100 inch cutting diameter and a 118-degree standard point angle, making it a reliable general-purpose bit for drilling ferrous and non-ferrous metals, plastics, and composite materials. The 2-flute spiral flute design with regular spiral and web-thinned, tapered web geometry promotes chip evacuation and reduces thrust during entry. This bit is suited for use in hand drills, drill presses, and CNC drilling operations in production or maintenance environments. Licensed tradespeople and machinists across HVAC, plumbing, electrical, and general fabrication trades stock this size for everyday hole-making tasks.

The HERTEL 85704120 is designed for general-purpose drilling applications in light to medium production settings. Its 2-5/8 inch overall length and 1-1/2 inch flute length make it appropriate for standard-depth holes in sheet metal, structural steel, aluminum, and thermoplastics. The straight cylindrical shank seats cleanly in 3-jaw chucks and keyless drill chucks of matching capacity. This bit size is commonly used for tapping prep, pilot holes, and sheet metal penetrations across residential and commercial mechanical trades.

Key Features

• No. 35 wire gauge size — 0.1100 inch diameter for precise tap-prep and pilot-hole applications
• 118-degree standard point angle provides reliable self-centering on flat and curved surfaces
• High speed steel construction withstands heat buildup during continuous drilling cycles
• Web-thinned tapered web reduces drill thrust and improves entry performance
• Bright uncoated finish allows visual inspection of edge condition and wear
• Straight cylindrical shank fits standard 3-jaw and keyless chucks without adapters

Compatibility

Designed as a general-purpose jobber length drill bit compatible with any hand drill, drill press, or CNC machine tool equipped with a chuck sized to accept a 0.1100 inch straight cylindrical shank.

Installation Notes

This bit is installed by licensed machinists, electricians, HVAC technicians, and plumbers performing drilling operations as part of system installation or fabrication work. Secure the shank fully in the chuck and confirm concentricity before operating at speed. Use appropriate cutting fluid when drilling hardened or stainless materials to extend edge life. Inspect the cutting edges before each use and replace bits showing chipping, heat discoloration, or edge rollover.