Sgs 07388 Circuit Board Drill Bit No. 34 Solid Carbide

Product Description

The SGS 07388 is a solid carbide circuit board drill bit engineered for precision drilling in printed circuit board fabrication and related small-hole applications. Manufactured from uncoated solid carbide, this bit cuts a 0.111-inch (No. 34 wire gauge) diameter hole with a 130-degree four-facet point that reduces walking and promotes clean entry. The 1/8-inch shank diameter fits standard PCB drilling spindles and compatible CNC or hand-operated drill presses. A regular spiral with a 30-degree helix angle and tapered web configuration supports efficient chip evacuation in both metallic and non-metallic substrates. This bit is typically installed and used by electronics manufacturers, PCB assembly technicians, and precision machinists.

The SGS 07388 is suited for drilling through printed circuit boards and thin workpieces made from aluminum, cast iron, copper alloy, stainless steel, titanium, cobalt alloy, nickel, fiber-reinforced polymers, and plastics. Its 0.4-inch flute length accommodates the shallow depth-of-cut typical in circuit board and thin-panel work. The 1.5-inch overall length keeps the bit rigid and minimizes deflection at small diameters. This bit covers a broad range of material codes including aluminum, cast iron, non-ferrous metals, plastics, and superalloys, making it a versatile choice in mixed-material production environments.

Key Features

• No. 34 wire size cutting diameter of 0.111 inches (2.82 mm) with a tight tolerance of -0.0003 to +0.0000 inches
• 130-degree four-facet point reduces drill walk and produces clean hole entry
• Solid carbide construction provides hardness and wear resistance for demanding substrate materials
• Regular spiral with 30-degree helix angle and tapered web promotes chip clearance in short-flute applications
• Uncoated finish suits applications where coating compatibility or regrindability is a concern
• Right-hand cut, 2-flute design compatible with standard CNC and manual PCB drilling setups

Compatibility

Designed for use with standard 1/8-inch shank PCB drill chucks and compatible CNC drilling spindles. Suitable for drilling aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium workpieces per the material application data provided by the manufacturer.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or PCB fabrication technicians familiar with small-diameter carbide tooling. Secure the 1/8-inch shank firmly in a collet or chuck before operation to prevent runout that can fracture carbide at this diameter. Carbide drill bits are brittle - avoid lateral loading, impact, and contact with hard surfaces during handling and storage. Follow machine manufacturer guidelines for spindle speed and feed rate recommendations appropriate to the workpiece material.