Sgs 07386 Circuit Board Drill Bit Size 35 Solid Carbide

Product Description

The SGS 07386 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and similar small-diameter applications. It carries a wire gauge size of 35, which corresponds to 0.1100 inches (2.79 mm) in decimal inch terms. The 130-degree four facet point geometry promotes accurate entry and reduced thrust, which matters when working with thin, layered, or brittle substrates. At 1.5 inches overall length with a 0.4 inch flute length, this bit is suited for controlled, shallow drilling passes. A licensed machinist or PCB fabrication technician is the typical installer. The uncoated solid carbide construction provides rigidity and edge retention in demanding materials.

This drill bit is built for drilling circuit boards and precision components in production or repair environments. Its material application list covers a broad range of workpiece types including aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium. The right-hand cut with a regular spiral and 30-degree helix angle supports clean chip evacuation in these varied materials. It fits standard 0.125 inch (1/8 inch) shank collets common in CNC drilling equipment and precision drill presses used in electronics and light machining shops.

Key Features

• Wire gauge size 35 with 0.1100 inch decimal diameter for precision small-hole drilling
• 130-degree four facet point reduces walking and improves entry accuracy on hard or layered materials
• Solid carbide construction delivers rigidity and edge retention compared to HSS alternatives
• Uncoated finish maintains tight dimensional tolerances with a diameter tolerance of -0.0003 to +0.0000 inches
• Right-hand cut, regular spiral with 30-degree helix angle supports effective chip evacuation
• Tapered web configuration adds strength at the cutting tip

Compatibility

Designed as an OEM-style replacement or direct-use circuit board drill bit compatible with CNC and manual drilling equipment accepting a 0.125 inch (1/8 inch) shank, as part of SGS Series 105.

Installation Notes

This bit is installed by machinists or PCB technicians using CNC drilling equipment or precision drill presses. Ensure the machine is fully powered down and the spindle is stopped before changing bits. Secure the shank firmly in a collet or chuck rated for the 0.125 inch shank diameter to prevent runout. Always follow applicable machine tool safety practices and equipment manufacturer guidelines when setting spindle speed and feed rate for the target workpiece material.