Hertel 83240366 Jobber Drill Bit 9/16 Inch Hss Oxide

Product Description

The HERTEL 83240366 is a jobber-length drill bit designed for general-purpose metal drilling in trade and industrial applications. It measures 9/16 inches (0.5625 inches) in diameter with an overall length of 6-5/8 inches and a flute length of 4-13/16 inches. The bit is manufactured from high speed steel with an oxide coating to reduce friction and extend service life during moderate-duty drilling. The standard 118-degree split-point geometry with web thinning improves penetration and reduces walking on entry. Right-hand spiral flutes evacuate chips efficiently during through-hole and blind-hole drilling operations.

This drill bit suits general-purpose drilling in steel, cast iron, aluminum, and similar metals encountered in HVAC, plumbing, and electrical trade work. The straight-cylindrical shank fits standard 3-jaw drill chucks on handheld drills, drill presses, and mill-drill machines without adapters. The 9/16-inch diameter is commonly used for conduit knockouts, pipe anchor bolt holes, bracket mounting, and equipment framing.

Key Features

• High speed steel construction provides hardness and wear resistance for metal drilling
• Oxide coating reduces friction and heat buildup at the cutting edge
• 118-degree standard point angle with web thinning for accurate entry and reduced thrust
• Tapered web configuration with regular spiral flutes for efficient chip evacuation
• Straight-cylindrical shank for universal chuck compatibility
• Right-hand cut, two-flute design suited for general-purpose through-hole and blind-hole work

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard 3-jaw drill chuck sized to accept a 0.5625-inch straight-cylindrical shank, including handheld drills and benchtop drill presses.

Installation Notes

Secure the workpiece fully before drilling to prevent rotation or movement. Use a center punch to mark the entry point and reduce bit walking on hard surfaces. Apply cutting fluid when drilling through thick steel stock to manage heat and extend bit life. Inspect the cutting edges for wear or chipping before each use and replace the bit if the geometry is compromised.