Hertel C.40W.0437 Taper Length Drill 11/64 Hss

Product Description

The HERTEL C.40W.0437 is a taper length twist drill bit designed for accurate hole production in metalworking, maintenance, and fabrication applications. Manufactured from high-speed steel (HSS) with a black oxide finish, this bit delivers durability and basic lubricity in ferrous and non-ferrous materials. The drill measures 0.1719 inches (11/64) in diameter with a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust and improves centering at the start of the cut. Overall length is 5.75 inches with a flute length of 3.375 inches, giving it extended reach compared to a jobber-length bit. The straight-cylindrical shank seats in standard three-jaw drill chucks.

This taper length drill is suited for machine shop, production floor, and maintenance environments where additional reach is required beyond a standard jobber-length bit. It is appropriate for use in drill presses, knee mills, lathes, and hand-held power drills when extra flute length is needed to clear deep holes or reach recessed surfaces. The right-hand spiral flute promotes efficient chip evacuation during through-hole drilling in steel, cast iron, aluminum, and similar materials.

Key Features

• HSS construction provides toughness across a broad range of workpiece materials
• Black oxide finish offers mild corrosion resistance and reduced friction during cutting
• 118-degree standard point angle suits general-purpose drilling in most metals
• Web-thinned tapered web reduces entry thrust and improves drill starting
• Taper length body (5.75 inches overall) provides extended reach vs. jobber-length drills
• Straight-cylindrical shank fits standard drill chucks without special toolholders

Compatibility

Designed as a general-purpose taper length drill bit compatible with any standard three-jaw drill chuck accepting an 11/64-inch straight-cylindrical shank, suitable for use in drill presses, milling machines, lathes, and compatible hand-held power tools.

Installation Notes

This bit should be installed and removed from the chuck only when the machine is fully powered off and at a complete stop. Secure the shank firmly in the chuck and verify concentricity before beginning the cut. Use appropriate cutting fluid for the workpiece material to extend tool life and improve finish quality. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point shows signs of dullness or damage.