Hertel C.E10.0635 Extra Length Drill Bit 1/4 in Hss

Product Description

The HERTEL C.E10.0635 is an extra length high-speed steel drill bit designed for through-hole and deep-hole drilling applications where standard-length bits cannot reach. The bit measures 0.25 inches (1/4 inch) in diameter with a 12-inch overall length and a 9-inch flute length, giving it the reach needed for thick stock, structural members, or deep cavity work. The 118-degree split-free point geometry suits general-purpose use across a wide range of materials. An oxide finish reduces friction and helps extend tool life in demanding conditions. This bit is sold individually and is appropriate for use by machinists, fabricators, maintenance technicians, and trade professionals working in metal, wood, or composite materials.

This extra length drill bit is well suited for applications requiring extended reach beyond the capacity of jobber-length bits. Typical uses include drilling through structural steel, deep timber framing, electrical conduit pathways, HVAC ductwork mounting, and plumbing rough-in work where access is restricted or material thickness is substantial. The 2-flute configuration promotes efficient chip evacuation during extended drilling passes.

Key Features

• 1/4 inch (0.2500 inch) diameter for precision sizing in standard hole applications
• 12-inch overall length provides extended reach for deep or obstructed work
• 9-inch flute length supports efficient chip clearance during deep drilling
• 118-degree point angle suited for general-purpose drilling across multiple materials
• High-speed steel construction offers durability under moderate heat and load
• Oxide finish reduces friction and helps resist wear during use

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard 3-jaw drill chucks and keyed chucks accepting 1/4 inch round shanks, suitable for use with corded or cordless drill drivers, drill presses, and magnetic-base drills.

Installation Notes

Installation and use of this drill bit should be performed by qualified tradespeople familiar with rotary cutting tools and appropriate personal protective equipment including eye protection. Secure the workpiece firmly before drilling and confirm the chuck is properly tightened before operation. Reduce feed pressure when breaking through the far side of the material to prevent bit walking or workpiece damage. Disconnect power from all drill equipment before changing bits or making chuck adjustments.