Hertel C.E11.1389 Extra Length Drill Bit 0.5469 in Hss

Product Description

The HERTEL C.E11.1389 is an extra length high-speed steel drill bit designed for drilling operations that require greater reach than standard-length bits provide. With a 0.5469 inch diameter and an 18 inch overall length, this bit handles deep-hole applications where a jobber-length bit falls short. The 118 degree point angle is the standard general-purpose geometry, suited to a wide range of ferrous and non-ferrous materials. An oxide finish provides light corrosion resistance and reduces friction during cutting. Trade professionals in HVAC, plumbing, electrical, and mechanical contracting rely on extra length bits for accessing confined or recessed locations in structural assemblies.

This drill bit is suited to general-purpose drilling through steel, iron, aluminum, wood, and similar materials in both residential and commercial trade applications. The 12 inch flute length provides effective chip evacuation over extended drilling depth. Typical use cases include drilling through wall studs, floor joists, or structural steel where standard length bits cannot reach. The two-flute design is the conventional configuration for this bit type and works with standard drill motors and magnetic base drills.

Key Features

• Extra length design with 18 inch overall length for deep-reach drilling applications
• 0.5469 inch diameter with standard 118 degree point angle for general-purpose use
• High-speed steel construction for durability across ferrous and non-ferrous materials
• 12 inch flute length supports chip evacuation in deep-hole drilling
• Oxide finish reduces friction and provides light surface protection
• Two-flute geometry compatible with standard drill motors and magnetic base drills

Compatibility

Designed as a general-purpose extra length drill bit suitable for use with standard drill motors and magnetic base drills across trade drilling applications in ferrous and non-ferrous materials.

Installation Notes

Extra length drill bits should be installed and used by qualified trade professionals familiar with rotary drilling equipment. Secure the workpiece before drilling and ensure the bit is properly chucked and seated before applying power. Reduce feed pressure on breakthrough to avoid grabbing or walking. Use appropriate cutting fluid when drilling through steel to extend bit life and manage heat buildup.