Hertel C.E11.0873 Extra Length Drill Bit 0.3438 in Hss

Product Description

The HERTEL C.E11.0873 is an extra length high-speed steel drill bit designed for deep-hole drilling applications where a standard-length bit cannot reach. It measures 0.3438 inches in diameter, with an 18-inch overall length and a 12-inch flute length, giving tradespeople the reach needed to bore through thick stock, structural members, or layered assemblies in a single pass. The 118-degree split point is a general-purpose geometry that starts on contact without a center punch on most materials. An oxide finish helps reduce friction and provides light corrosion resistance during use.

This bit is suited for metal fabrication shops, mechanical contractors, electricians drilling long runs through framing or steel studs, and plumbers boring through deep structural lumber or stacked plates. The extended reach is particularly useful when working in confined spaces where a right-angle drill or extended drill block is needed but a specialty bit is not practical. The two-flute design clears chips efficiently during through-drilling in ferrous and non-ferrous metals, wood, and plastics.

Key Features

• 0.3438-inch diameter for precise, repeatable hole sizing
• 18-inch overall length provides extended reach for deep or blind holes
• 12-inch flute length supports efficient chip evacuation over long cuts
• 118-degree point angle offers general-purpose performance across a wide range of materials
• High-speed steel construction maintains cutting edge integrity at elevated temperatures
• Oxide finish reduces surface friction and provides light corrosion protection

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard 3-jaw drill chucks and drill presses that accept the corresponding shank diameter.

Installation Notes

Install and remove this bit only with the drill powered off and unplugged or locked out per OSHA lockout/tagout requirements. Secure the workpiece firmly before drilling to prevent rotation or shifting. Use cutting fluid when drilling ferrous metals to extend bit life and maintain cutting geometry. Reduce feed pressure as the bit exits the back side of the workpiece to avoid grabbing or bit deflection.