Hertel 85704005 Jobber Drill Bit Wire 23 0.154in Hss 118deg

Product Description

The HERTEL 85704005 is a jobber-length drill bit designed for general-purpose metal drilling in light industrial and maintenance applications. Built from high-speed steel with a bright uncoated finish, it accepts standard drill press, hand drill, and CNC spindle chucks. The wire gauge size is 23, which corresponds to a decimal diameter of 0.154 inches. The point geometry features a 118-degree standard point angle with web thinning on a tapered web, which reduces thrust at the start of the cut and helps center the bit without a pilot hole. Two spiral flutes run a flute length of 2 inches along a 3.125-inch overall length straight-cylindrical shank.

This bit is suited for drilling ferrous and non-ferrous metals, plastics, and composite materials in residential, commercial, and light industrial settings. It is a practical choice for HVAC technicians, plumbers, electricians, and general maintenance mechanics who need a reliable wire-gauge bit for conduit knockout work, bracket fabrication, or sheet metal drilling. The straight-cylindrical shank fits standard three-jaw chucks without adapters.

Key Features

• Wire size 23 with 0.154-inch decimal diameter for precise hole sizing
• 118-degree standard point angle with web-thinned tapered web for reduced entry thrust
• High-speed steel construction handles intermittent drilling in steel, aluminum, and plastics
• Bright uncoated finish allows easy visual inspection of cutting edge condition
• Regular spiral flute with right-hand cut for use in standard forward-direction drilling
• Straight-cylindrical shank seats directly in three-jaw chucks without adapters

Compatibility

Designed as a general-purpose jobber-length drill bit fitting any standard three-jaw chuck that accepts a 0.154-inch straight-cylindrical shank, including drill presses, hand drills, and CNC spindles used across HVAC, plumbing, electrical, and fabrication trades.

Installation Notes

Always secure the workpiece before drilling to prevent rotation under torque. Use cutting fluid or cutting oil when drilling hardened steel to extend cutting edge life and reduce heat buildup. Inspect the cutting edges before each use and replace the bit if chipping or rounding is visible. Drilling speed should be selected based on workpiece material and diameter per standard machining reference tables.