Sgs 07374 Circuit Board Drill Bit Wire 40 Solid Carbide

Product Description

The SGS 07374 is a solid carbide circuit board drill bit engineered for precision drilling in printed circuit boards and other tight-tolerance applications. It carries a wire gauge size of 40, which corresponds to 0.0980 inches (2.49 mm) in decimal diameter. The 130-degree four-facet point geometry reduces thrust force and walking at entry, making it well suited for clean, accurate hole placement. With an overall length of 1.5 inches and a 0.125-inch (1/8 inch) shank diameter, this bit fits standard PCB drilling chucks and CNC drill spindles. The uncoated solid carbide construction delivers the rigidity and edge retention needed when working through multilayer board substrates and composite materials.

This drill bit is designed for use in circuit board fabrication and repair environments, including PCB shops, electronics manufacturing facilities, and precision machine shops. Its regular spiral with a 30-degree helix angle and tapered web configuration suit it for drilling aluminum, copper alloy, stainless steel, titanium, cobalt alloy, cast iron, nickel, plastics, and fiber-reinforced polymers. Right-hand cut configuration is compatible with standard CNC and manual drill press setups. It is sold individually and fits single-piece production and prototyping workflows alike.

Key Features

• Wire size 40 cutting diameter: 0.0980 inches (2.49 mm) with a tight tolerance of -0.0003 to +0.0000 inches
• 130-degree four-facet point reduces entry walking and improves hole positional accuracy
• Solid carbide construction provides rigidity and wear resistance in abrasive substrates
• 1/8 inch (0.125 inch) shank diameter fits standard PCB and CNC drill chucks
• Regular spiral with 30-degree helix angle and tapered web for efficient chip evacuation
• Uncoated finish compatible with a broad range of workpiece materials including titanium and fiber-reinforced polymers

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC drill presses, PCB drilling machines, and manual drill press setups that accept a 1/8 inch round shank. Suitable for use on aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium workpieces.

Installation Notes

This bit should be installed by a qualified machinist or technician familiar with CNC or manual drill press operation. Ensure the machine spindle is fully powered down and locked out before changing tooling. Verify chuck runout is within acceptable tolerance before drilling, as excessive runout will accelerate carbide edge wear and degrade hole quality. Solid carbide bits are brittle and should not be used in setups with excessive vibration or lateral loading.