Hertel C.E10.0794 Extra Length Drill Bit 5/16 Inch Hss

Product Description

The HERTEL C.E10.0794 is an extra length twist drill bit designed for reaching deep-hole drilling applications where standard-length bits fall short. Machined from high-speed steel (HSS) with an oxide finish, this bit measures 5/16 inch in diameter and delivers a 118-degree split point angle for accurate starting and reduced walking on entry. With a 12-inch overall length and a 9-inch flute length, it provides extended reach in confined or deep-bore work. It is a general-purpose bit suited for use in handheld drills, drill presses, and magnetic base drills across metal fabrication, HVAC install, and mechanical contractor applications.

This drill bit is used in trade and light industrial settings where standard 6-inch jobber-length bits cannot reach the work surface. Common applications include drilling through structural members, deep sheet metal assemblies, HVAC ductwork brackets, electrical conduit supports, and similar through-hole work requiring extended reach. The two-flute design clears chips efficiently during progressive drilling. It is sold individually and is appropriate for machinists, pipefitters, electricians, and HVAC sheet metal mechanics who need reliable performance in extended-reach drilling tasks.

Key Features

• Extra length design at 12 inches overall length for deep-hole and extended-reach drilling
• 9-inch flute length promotes efficient chip evacuation in deep bores
• 118-degree drill point angle for accurate self-starting entry with minimal walking
• High-speed steel construction provides heat resistance and durability in ferrous and non-ferrous materials
• Oxide finish reduces friction and provides light corrosion resistance during storage and use
• Two-flute geometry suits general-purpose through-hole drilling in a wide range of materials

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard 3-jaw drill chucks accepting 5/16-inch round shanks, including handheld power drills, drill presses, and magnetic base drills.

Installation Notes

Installation and use should be performed by a qualified tradesperson familiar with rotary cutting tools and applicable workplace safety standards. Always secure the workpiece firmly before drilling and ensure the chuck is fully tightened before operation. Wear appropriate eye protection and inspect the bit for cracks or damage before each use. When drilling deep holes, withdraw the bit periodically to clear chips and prevent heat buildup.