Hertel 84581214 No 47 Hss Jobber Drill Bit 135 Deg

Product Description

The HERTEL 84581214 is a No. 47 wire-size jobber-length drill bit designed for precision holemaking in metal and similar materials. Built from high speed steel (HSS) with an oxide coating, it features a 135-degree split point that reduces walking and allows drilling to start without a center punch in many applications. The two-flute spiral design with a regular spiral type and tapered web configuration supports efficient chip evacuation. At 2 inches overall length with a 1-inch flute length, it fits standard drill chucks and is classified as a heavy-duty grade jobber series bit. Cutting direction is right hand with a straight-cylindrical shank.

This drill bit is suited for general holemaking tasks in light fabrication, maintenance, and repair environments. The No. 47 wire gauge size corresponds to a decimal diameter of 0.0785 inches, making it appropriate for tapping pilot holes, electrical conduit work, and precision assembly applications where small-diameter bores are required. It is sold individually but must be ordered in multiples of 12. Licensed machinists, electricians, plumbers, and maintenance technicians commonly stock this size for bench and hand-drill use.

Key Features

• 135-degree split point reduces drill walking and improves hole entry accuracy
• High speed steel construction with oxide coating for wear resistance and corrosion inhibition
• Web-thinned, tapered web configuration promotes efficient chip clearing
• Right-hand cutting, two-flute spiral design for standard drilling operations
• Straight-cylindrical shank fits standard three-jaw drill chucks
• Heavy-duty grade rating per NAS specification designation

Compatibility

Designed as a standard jobber-length drill bit for use in any hand drill, drill press, or CNC machine accepting a straight-cylindrical shank of 0.0785 inches diameter.

Installation Notes

This bit is installed and removed from drill chucks by licensed machinists or trained technicians following standard tooling procedures. Secure the shank fully in the chuck and confirm concentricity before operation. Always wear appropriate eye protection and ensure the workpiece is properly clamped before drilling. Do not exceed the recommended RPM range for the workpiece material and bit diameter.