Sgs 07281 Circuit Board Drill Bit 1/64 in Solid Carbide

Product Description

The SGS 07281 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and related small-diameter applications. It features a 1/64 inch (0.0156 inch decimal) cutting diameter with a 130-degree four-facet point geometry that promotes accurate entry and minimizes walking on hard substrates. The uncoated solid carbide construction delivers rigidity and edge retention in demanding materials. The bit carries a 1/8 inch shank diameter and a 1-1/2 inch overall length, making it compatible with standard drill press chucks and CNC drilling spindles used in electronics and precision machining environments. Installation and use are typically performed by machinists, electronics fabricators, and precision shop technicians.

The SGS 07281 is suited for drilling aluminum, cast iron, cobalt alloys, copper alloys, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium. Its regular spiral configuration and 30-degree helix angle support efficient chip evacuation in both through-hole and blind-hole circuit board drilling operations. This bit is appropriate for use in light CNC drilling centers, benchtop drill presses, and precision hand-held drilling fixtures where small-diameter accuracy is critical. It is sold individually and is intended for professional machining and electronics fabrication environments.

Key Features

• Solid carbide construction for rigidity and long edge life in hard and abrasive materials
• 130-degree four-facet point for accurate self-centering entry without pilot drilling
• 1/64 inch (0.0156 inch) cutting diameter with tight tolerance of -0.0003 to +0.0000 inch
• 1/8 inch shank diameter fits standard CNC and benchtop drill press chucks
• 30-degree helix angle with regular spiral for efficient chip evacuation
• Uncoated finish suitable for a broad range of workpiece materials including plastics and fiber-reinforced polymers

Compatibility

Designed for use with materials including aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium. Fits standard 1/8 inch chucks on CNC drilling centers and benchtop drill presses used in circuit board and precision machining applications.

Installation Notes

This bit is installed and operated by machinists and electronics fabrication technicians using appropriate drilling equipment rated for small-diameter carbide tooling. Secure the 1/8 inch shank firmly in the chuck before operation and verify spindle runout is within acceptable limits to prevent bit breakage at this diameter. Carbide tooling is brittle - avoid lateral loading or impact during use. Follow the equipment manufacturer guidelines for feed rate and spindle speed when drilling at this diameter.