Hertel C.40W.0198 Taper Length Drill 5/64 Hss

Product Description

The HERTEL C.40W.0198 is a taper length twist drill bit designed for precision drilling in metal, wood, and composite materials. Ground from high-speed steel (HSS) with a black oxide finish, it measures 0.0781 inches (5/64 inch) in diameter with a standard 118-degree point angle. The taper length body provides added reach beyond a jobber-length bit without sacrificing rigidity. A web-thinned, tapered-web construction reduces thrust at the cutting point for cleaner entry. This bit suits machinists, maintenance technicians, and fabricators working with drill presses, CNC equipment, or hand-held power drills requiring a straight-cylindrical shank.

This drill bit is suited for general-purpose drilling operations in light manufacturing, maintenance, and fabrication environments. The 0.0781-inch diameter makes it appropriate for pilot holes, small-diameter through-holes, and finish drilling where dimensional accuracy is critical. Its straight-cylindrical shank fits standard three-jaw chucks commonly found on benchtop drill presses and portable drills. The right-hand spiral flute configuration clears chips efficiently in typical feed-and-speed applications across a range of ferrous and non-ferrous workpiece materials.

Key Features

• 0.0781 inches (5/64 inch) diameter with a 118-degree standard point angle for general-purpose drilling
• HSS construction provides toughness and heat resistance across a wide range of materials
• Black oxide finish reduces friction and provides light corrosion resistance during storage and use
• 2.0000-inch flute length offers extended reach compared to standard jobber-length bits
• Web-thinned, tapered-web design reduces cutting thrust and improves point stability
• Right-hand cut spiral flute with straight-cylindrical shank for compatibility with standard chucks

Compatibility

Designed as an OEM-style replacement or stock drill bit for use in any standard three-jaw chuck or collet system accepting a straight-cylindrical shank at 5/64 inch diameter.

Installation Notes

Installation and use should be performed by qualified machinists or trades personnel familiar with rotating cutting tools. Always secure the workpiece before engaging the spindle, and confirm chuck jaws are fully tightened before operation. Verify spindle speed is appropriate for the workpiece material and bit diameter before drilling. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point is damaged.