M.a. Ford. 30205200 Circuit Board Drill Bit No. 55

Product Description

The M.A. FORD. 30205200 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and related applications. The bit carries a wire gauge size of No. 55, translating to a cutting diameter of 0.0520 inches (1.32 mm). It features a 130-degree drill point angle and a fast spiral flute geometry with a 35-degree helix angle, promoting efficient chip evacuation and clean hole entry. The 1/8-inch (0.1250-inch decimal) straight shank is compatible with standard PCB drill chucks and CNC drilling spindles. This is a two-flute, right-hand cutting tool with a tapered web configuration and arrives uncoated.

This drill bit is suited for high-precision drilling operations in PCB manufacturing, prototype board work, and small-hole drilling in thin non-ferrous metals and engineering alloys. Material suitability includes cast iron, carbon steel, alloy steel, stainless steel, high-temperature alloys, titanium, and non-ferrous metals. The fast spiral design is particularly effective in materials that produce stringy chips or require an aggressive chip-clearing action. Machinists, tool and die technicians, and PCB fabrication specialists are the primary installers and users of this tool.

Key Features

• No. 55 wire gauge cutting diameter: 0.0520 inches (1.32 mm)
• Solid carbide construction for rigidity and wear resistance in small-diameter drilling
• 130-degree drill point angle for reduced thrust and accurate hole location
• Fast spiral flute with 35-degree helix angle for efficient chip evacuation
• Tapered web configuration maintains core strength along the flute length
• Right-hand cutting, suitable for standard CNC and manual drill press setups

Compatibility

Designed as a Series 302 replacement-style solid carbide circuit board drill bit for use with 1/8-inch shank CNC PCB drilling machines, drill presses, and compatible toolholding chucks accepting a 0.1250-inch straight shank.

Installation Notes

Installation and use should be performed by qualified machinists or PCB fabrication technicians familiar with small-diameter carbide tooling. Secure the shank fully and concentrically in the chuck before operation to prevent runout, which can cause bit breakage at this diameter. Solid carbide bits are brittle — avoid lateral loading or impact. Confirm spindle speed and feed rate settings are appropriate for the workpiece material and bit diameter before engaging the cut.