Cle-line C18405 1/8 in Left Hand Jobber Drill Bit Hss

Product Description

The CLE-LINE C18405 is a jobber-length drill bit designed for left-hand cutting in general-purpose drilling applications. Manufactured from high-speed steel with a bright uncoated finish, it features a 118-degree standard point angle and a regular spiral flute configuration. The 1/8-inch diameter straight-cylindrical shank and 2-3/4-inch overall length make it a compact, precise tool suited for use in metalworking and mechanical trades. The web-thinned, tapered web design reduces thrust at entry and improves chip clearance. This bit conforms to ASME B94.11M standards and falls within the Series 1898L product family.

This drill bit is intended for use in left-hand drilling operations, which are commonly applied when extracting damaged or broken fasteners. Left-hand rotation allows the bit to back out stuck screws and bolts during the drilling process. It is well-suited for use on aluminum, non-ferrous metals, and plastics. The 1-5/8-inch flute length provides adequate chip evacuation in shallow to moderate-depth holes. Machinists, HVAC technicians, plumbers, and electricians working with broken fastener removal will find this bit a standard part of their extraction workflow.

Key Features

• Left-hand cut spiral flute for broken fastener extraction applications
• 118-degree standard point angle for accurate starting on metal surfaces
• Web-thinned tapered web reduces drilling thrust and improves chip flow
• High-speed steel construction for durability across general-purpose materials
• Straight-cylindrical shank fits standard drill chucks without modification
• Conforms to ASME B94.11M dimensional standards

Compatibility

Designed as a general-purpose left-hand jobber-length drill bit suitable for use in standard drill chucks accepting a 1/8-inch straight-cylindrical shank, with primary workpiece materials including aluminum, non-ferrous metals, and plastics.

Installation Notes

Installation and use of this drill bit should be performed by qualified tradespeople familiar with left-hand drilling and fastener extraction procedures. Always secure the workpiece and power down or lock out any associated equipment before changing bits. Use a drill press or reversible drill motor set to left-hand rotation. Do not exceed the rated material and speed parameters for high-speed steel tooling.