Hertel C.E08.1032 Extra Length Drill Bit 0.4062 in Hss

Product Description

The HERTEL C.E08.1032 is an extra length twist drill bit designed for drilling operations that require greater reach than a standard jobber-length bit provides. Manufactured from high-speed steel with an oxide finish, this bit features a 118-degree split or conventional point angle suited for general-purpose work in a wide range of materials. The overall length of 8 inches and a flute length of 5.5 inches give the bit the extended reach needed to bore through thick stock, deep cavities, or hard-to-access locations. It is a single-flute-count bit with 2 flutes and is sized at 0.4062 inches in diameter. Machinists, maintenance technicians, and skilled tradespeople working in metal fabrication, HVAC rough-in, or industrial maintenance will find this a practical addition to a drill index.

This extra length drill bit is intended for general-purpose drilling applications where standard-length bits cannot reach the work. Typical use cases include drilling through structural steel, tubing, aluminum extrusions, and similar metals encountered in mechanical, HVAC, and plumbing rough-in work. The oxide finish provides a degree of lubricity and corrosion resistance to extend tool life under normal shop and field conditions. With a 0.4062-inch diameter, this bit is compatible with most 1/2-inch chuck portable drills, drill presses, and milling machine spindles commonly found in trade and shop environments.

Key Features

• Extra length design at 8 inches overall length for deep or hard-to-reach drilling
• 0.4062-inch diameter for precise sizing in 1/2-inch chuck equipment
• 118-degree point angle suited for general-purpose metal drilling
• High-speed steel construction for durability across a range of workpiece materials
• Oxide finish reduces friction and provides light corrosion resistance
• 5.5-inch flute length supports chip evacuation in deep-hole applications

Compatibility

Designed as a general-purpose extra length drill bit compatible with any 1/2-inch keyed or keyless drill chuck, benchtop drill press, or milling machine accepting standard straight-shank bits of this diameter.

Installation Notes

Secure the bit fully in the chuck before use and verify there is no visible runout before beginning a cut. When drilling deep holes, withdraw the bit periodically to clear chips and prevent heat buildup, which can shorten tool life. Use appropriate cutting fluid for ferrous metals. Personal protective equipment including eye protection is required when operating any drilling equipment.