Hertel C.E10.1667 Extra Length Drill Bit 0.6562 in Hss

Product Description

The HERTEL C.E10.1667 is an extra length high-speed steel drill bit designed for drilling applications that require extended reach beyond standard bit lengths. Measuring 12 inches in overall length with a 9-inch flute length, it handles deep-hole drilling in metal, wood, and similar materials where a standard-length bit cannot reach. The 118-degree split point and oxide finish are suited for general-purpose production and maintenance drilling. This bit is typically used by machinists, pipefitters, electricians, and mechanical contractors who need to bore through thick stock, structural members, or deep assemblies without repositioning the workpiece.

This extra length drill bit is well suited for commercial and industrial applications where access is restricted or hole depth exceeds what a jobber-length bit can achieve. Common scenarios include drilling through wall studs, equipment frames, flanges, and heavy plate. The 0.6562-inch diameter makes it appropriate for conduit knockout pre-drilling, anchor bolt clearance holes, and similar trade tasks requiring a larger-diameter, deep-reach bit. It ships as a single unit and requires no additional tooling beyond a compatible drill chuck.

Key Features

• Extra length design at 12 inches OAL provides deep-hole reach not available with standard jobber bits
• 9-inch flute length allows effective chip evacuation throughout the full drilling depth
• 118-degree drill point angle optimized for general-purpose use across a wide range of materials
• High-speed steel construction provides durability and resistance to heat buildup during drilling
• Oxide finish reduces friction and helps resist corrosion during storage and use
• Two-flute configuration supports efficient chip clearing in deep holes

Compatibility

Designed as a general-purpose extra length drill bit compatible with any drill press, magnetic drill, or handheld drill with a chuck sized to accept a 0.6562-inch shank.

Installation Notes

Installation is performed by machinists, electricians, pipefitters, or mechanical contractors using a drill press, magnetic base drill, or heavy-duty handheld drill. Secure the workpiece firmly before drilling to prevent movement, and use appropriate cutting fluid when drilling through steel or hardened materials to extend bit life. Inspect the bit for wear or damage before each use, and discontinue use if chipping or excessive runout is observed. Follow applicable shop safety standards and wear appropriate eye protection at all times.