Hertel 61699419 Screw Machine Drill Bit No. 35 7/64

Product Description

The HERTEL 61699419 is a screw machine length drill bit designed for high-volume drilling in metal, wood, and plastic applications. Built from high-speed steel with an oxide finish, this bit handles general-purpose drilling where a shorter, stiffer geometry is preferred over jobber-length tooling. It carries a No. 35 wire gauge designation, equivalent to 7/64 inch (0.1100 inches), and features a standard 118-degree split point for accurate starting without center-punching on most materials. The screw machine length body reduces deflection and improves hole-location accuracy in production and repair environments. Licensed machinists, tool-and-die workers, and maintenance technicians typically reach for this geometry when working in tight setups or drill presses with limited spindle travel.

This bit is suited for light-duty production drilling in machine shops, maintenance facilities, and assembly operations. The 3xD flute-to-diameter ratio and 7/8-inch flute length make it appropriate for shallow holes in ferrous and non-ferrous stock. Its right-hand cut and straight cylindrical shank seat directly in standard Jacobs-style and keyless chucks without adapters. General-purpose grade construction makes it a cost-effective choice for everyday toolroom and line-maintenance use rather than exotic alloy or interrupted-cut applications.

Key Features

• No. 35 wire gauge size - 0.1100 inches (7/64 inch) diameter for precise hole sizing
• 118-degree standard point angle for general-purpose entry on a wide range of materials
• High-speed steel construction provides durability across ferrous and non-ferrous workpieces
• Oxide coating reduces friction and helps resist corrosion during storage and use
• Screw machine length (1-7/8 inches OAL) delivers increased rigidity and reduced deflection versus jobber-length bits
• Straight cylindrical shank fits standard drill chucks without modification
• Right-hand spiral flutes with regular helix promote efficient chip evacuation in shallow holes

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with any standard drill chuck or press accepting a straight cylindrical shank at 0.1100 inches diameter, conforming to ANSI specification designation.

Installation Notes

Install this bit in a properly sized chuck and tighten securely before operation. Ensure the drill press or hand drill is powered down and the spindle is at a full stop before changing bits. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend cutting-edge life. Inspect the cutting edges for wear or chipping before each use, and replace the bit when point geometry shows visible degradation to maintain hole accuracy.