Value Collection 01220284 Left Hand Jobber Drill 7/16 in

Product Description

The VALUE COLLECTION 01220284 is a left-hand jobber-length drill bit designed for general-purpose drilling in metal, wood, and similar materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it measures 7/16 inch (0.4375 inch) in diameter and carries a standard 118-degree point angle. Overall length is 5-1/2 inches, with a flute length of 4-1/16 inches. The web-thinned, tapered web configuration reduces thrust at the tip and improves chip evacuation. This bit is installed by machinists, maintenance mechanics, and general tradespeople working with left-hand drill applications such as broken fastener extraction.

Left-hand jobber drill bits rotate counterclockwise, making them a standard tool for backing out stripped or broken bolts without additional extraction tools. The straight cylindrical shank seats directly into standard drill chucks. This bit suits bench drills, hand-held reversible drills, and magnetic-base drill setups. It is appropriate for general-purpose applications across light manufacturing, maintenance, and repair operations where a 7/16-inch left-hand cutting action is required.

Key Features

• Left-hand cutting direction for counterclockwise rotation and broken fastener extraction
• High-speed steel construction for durability across general-purpose drilling tasks
• 118-degree standard point angle for broad material compatibility
• Web-thinned, tapered web reduces drill thrust and aids chip clearance
• Bright uncoated finish suitable for standard machining environments
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose left-hand jobber drill bit fitting standard drill chucks that accept a 7/16-inch straight cylindrical shank.

Installation Notes

Left-hand drill bits require a reversible drill or drill press set to counterclockwise rotation before use. Secure the workpiece firmly before drilling to prevent movement. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and improve cut quality. Inspect the cutting edges for wear or chipping before each use and replace the bit if damage is present.