Hertel H95006130 Jobber Drill Bit No 31 137 Deg Hss

Product Description

The HERTEL H95006130 is a No. 31 wire-size jobber-length drill bit designed for general holemaking in metal, wood, and composite materials. Built from high speed steel with an oxide finish, it cuts right-hand with a two-flute regular spiral configuration and a 137-degree split point that reduces walking and lowers thrust on entry. The 137-degree split point geometry makes this bit well suited for harder stock and interrupted cuts where a standard 118-degree tip would deflect. The overall length of 2.75 inches and a flute length of 1.25 inches place it within ANSI jobber-length standards, keeping it compatible with standard drill chucks and quick-change holders used in trade applications.

This bit is used in light to medium-duty production drilling, maintenance and repair work, and fabrication tasks where a No. 31 hole diameter (0.1200 inches decimal equivalent) is required. Typical applications include pilot hole drilling, tap preparation for small-diameter threads, and sheet metal work. It is appropriate for use in hand drills, drill presses, and CNC-style benchtop equipment. The heavy-duty grade designation makes it a step above general-purpose bits, and it is commonly carried by electricians, plumbers, HVAC fabricators, and general maintenance technicians who need reliable small-diameter drilling in their daily kit.

Key Features

• No. 31 wire size, 0.1200 inch decimal diameter for precise small-hole work
• 137-degree split point reduces bit walk and cutting thrust at entry
• High speed steel construction with oxide finish for durability in ferrous and non-ferrous materials
• Two-flute regular spiral design promotes efficient chip evacuation
• ANSI jobber-length series fits standard drill chucks and quick-change systems
• Heavy-duty grade rating for demanding production and repair drilling tasks

Compatibility

Designed as an ANSI-standard jobber-length drill bit compatible with standard three-jaw drill chucks and quick-change drill holders accepting round-shank bits in the No. 31 wire-size range.

Installation Notes

Install the bit securely in a properly sized drill chuck and confirm the shank is fully seated before drilling. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain hole quality. Ensure the workpiece is firmly clamped before starting the cut. Follow applicable shop safety practices and OSHA general industry standards when operating drilling equipment.