Sgs 07345 Circuit Board Drill Bit 1.7mm Solid Carbide

Product Description

The SGS 07345 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and related small-diameter applications. It measures 1.7 mm (0.0669 inches) in diameter with a 130-degree four-facet point that promotes accurate entry and reduces walking on hard substrates. The uncoated carbide construction handles abrasive and hard materials without a coating that could affect tolerance. Overall length is 1.5 inches (38.10 mm), with a 1/8-inch (3.18 mm) shank. This bit is used by electronics fabricators, precision machinists, and trade technicians drilling tight-tolerance holes in PCBs, composites, and specialty alloys.

The 07345 is suited for drilling in aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium. Its regular spiral geometry and 30-degree helix angle support chip evacuation in both through-hole and blind-hole drilling scenarios on CNC and manual drill presses. The heavy-duty grade carbide holds up in production environments where bit longevity and hole consistency are critical. Typical applications include PCB manufacturing, avionics component drilling, and precision assembly work in electronics and aerospace shops.

Key Features

• 1.7 mm (0.0669 inches) diameter with a tolerance of -0.0003 to +0.0000 inches for tight-tolerance hole requirements
• 130-degree four-facet point reduces drill walking and improves entry accuracy on hard and layered materials
• Solid carbide, uncoated construction rated for alloy steel, titanium, stainless steel, and fiber-reinforced polymers
• 1/8-inch (3.18 mm) shank fits standard PCB drilling spindles and CNC tool holders
• Regular spiral with 30-degree helix and tapered web for efficient chip evacuation and reduced heat buildup
• Right-hand cut, two-flute design in SGS Series 105 heavy-duty grade

Compatibility

Designed as a standard-shank PCB-style drill bit compatible with CNC drilling spindles and manual drill presses accepting a 1/8-inch shank. Suitable for use on aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium workpieces.

Installation Notes

Installation and use should be performed by qualified machinists or electronics fabrication technicians familiar with small-diameter carbide tooling. Carbide bits are brittle and require proper spindle runout and chuck concentricity to avoid breakage; inspect the shank and spindle interface before use. Secure the workpiece firmly to prevent movement during drilling, particularly in thin or laminated PCB material. Follow equipment manufacturer guidelines for spindle speed and feed rate for the specific workpiece material and bit diameter.