Sgs 07396 Circuit Board Drill Bit 3.05mm Solid Carbide

Product Description

The SGS 07396 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and high-tolerance machining applications. Built to Series 105 specifications, this bit measures 3.05 mm (0.1201 inches) in diameter with a 1/8-inch (3.18 mm) shank and an overall length of 1.5 inches (38.10 mm). The 130-degree four-facet point geometry reduces walking and improves hole entry accuracy. The uncoated solid carbide construction delivers rigidity and wear resistance across a broad range of workpiece materials. This bit is suited for machinists, PCB fabricators, and trade shops requiring tight-tolerance small-diameter drilling.

This drill bit is appropriate for use in CNC drilling machines, precision drill presses, and PCB routing equipment. Its regular spiral configuration and 30-degree helix angle support chip evacuation in shallow and moderate-depth holes. The tapered web and right-hand cutting direction are standard for conventional drilling setups. Compatible material applications include aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium, making it a versatile choice for shops working across multiple material types.

Key Features

• 3.05 mm (0.1201 inches) cutting diameter with tight tolerance of -0.0003 to +0.0000 inches
• 130-degree four-facet point for accurate entry and reduced deflection
• Solid carbide construction rated heavy-duty for extended tool life
• Regular spiral with 30-degree helix angle supports chip clearance
• Uncoated finish suitable for dry or lubricated drilling across multiple materials
• 1/8-inch shank fits standard collets and drill chucks

Compatibility

Designed as a direct-fit replacement or standard tooling selection for PCB drilling operations and precision machining setups requiring a 3.05 mm solid carbide drill bit with a 1/8-inch shank. Compatible workpiece materials include aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium (material application codes K, M, N, P, S).

Installation Notes

Installation and use of this bit should be performed by qualified machinists or PCB fabrication technicians familiar with small-diameter carbide tooling. Always secure the shank fully in a properly sized collet or chuck before operation and verify spindle runout is within acceptable limits, as carbide bits are brittle and sensitive to lateral loading. Power down the machine completely before changing tooling. Avoid side loads and interrupted cuts that can cause chipping or breakage in solid carbide bits.