Hertel 84580828 No 8 Hss Jobber Drill Bit 135 Deg

Product Description

The HERTEL 84580828 is a No. 8 wire size jobber-length drill bit designed for general-purpose holemaking in metal, wood, and composite materials. Built from high speed steel with an oxide coating, it runs a 135-degree split point that reduces walking and lowers thrust at entry. The bit measures 3.625 inches overall with a 2.4375-inch flute length and carries a 0.1990-inch diameter on both the cutting end and the straight-cylindrical shank. The heavy-duty grade and web-thinned geometry make it a practical choice for production drilling where consistent hole quality and tool life matter.

This jobber drill fits standard drill press chucks and handheld power drills that accept a 0.1990-inch straight shank. It is suited for light-to-medium duty holemaking tasks in trade and industrial settings, including HVAC sheet metal work, electrical rough-in drilling, plumbing fixture layout, and general fabrication. The jobber-length body balances reach and rigidity well for most through-hole applications in materials up to moderate hardness. The right-hand, regular-spiral, two-flute design clears chips efficiently in both handheld and machine setups.

Key Features

• 135-degree split point reduces bit walk and entry thrust on hard or slick surfaces
• Web-thinned, tapered web configuration lowers cutting resistance and improves chip flow
• Oxide coating provides basic lubricity and corrosion resistance during storage and use
• High speed steel construction handles intermittent-duty drilling across a range of common materials
• Straight-cylindrical shank is compatible with standard 3-jaw drill chucks
• Jobber-length series balances flute reach with shank rigidity for versatile positioning

Compatibility

Designed as an OEM-style jobber drill replacement for any application requiring a No. 8 wire size (0.1990-inch) straight-shank drill bit conforming to NAS specification standards.

Installation Notes

Installation is performed by machinists, electricians, plumbers, HVAC technicians, and general tradespeople using standard drill presses or handheld power drills. Secure the shank fully in the chuck and verify the bit runs true before drilling. Always wear eye protection and secure the workpiece before applying feed pressure. Disconnect or de-energize equipment before drilling into live panels or pressurized assemblies.