M.a. Ford. 30004300 Circuit Board Drill Bit Size 57

Product Description

The M.A. FORD. 30004300 is a solid carbide circuit board drill bit designed for precision drilling in PCB fabrication and tight-tolerance machining applications. Built to wire gauge size 57, the bit measures 1.09 mm (0.0430 inches) in both drill diameter and shank diameter, with a 118-degree drill point angle and a fast spiral flute configuration. The 35-degree helix angle and tapered web geometry promote efficient chip evacuation and help maintain hole accuracy in thin, layered, or stacked materials. This bit is intended for use by machinists, electronics fabricators, and skilled tradespeople running CNC or manual drilling equipment.

The 30004300 is suited for drilling cast iron, non-ferrous metals, plastics, and steel in both production and prototype environments. The fast spiral design makes it particularly effective in materials that require aggressive chip clearing to prevent heat buildup or bit deflection. With a 5/8-inch flute length and a 1-1/2-inch overall length, it fits standard collet and chuck setups used in PCB drilling machines and benchtop drill presses. Its uncoated solid carbide construction provides consistent performance across a range of workpiece materials without the variability introduced by coatings.

Key Features

• Wire gauge size 57 with 1.09 mm diameter for precision small-hole drilling
• Solid carbide construction rated for heavy-duty use in cast iron, non-ferrous metals, and plastics
• 118-degree drill point angle with tapered web for accurate entry and reduced walking
• Fast spiral, 35-degree helix angle promotes efficient chip evacuation
• Right-hand cutting direction, 2-flute design
• Uncoated finish for consistent performance across multiple workpiece materials

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for standard collet and chuck systems accepting a 1.09 mm (0.0430-inch) shank diameter, commonly used in PCB drilling machines and precision benchtop drill presses.

Installation Notes

This bit is installed by machinists or electronics fabrication technicians using collet-style chucks sized to accept a 1.09 mm shank. Ensure the spindle is fully stopped and the machine is powered down before changing bits. Verify collet runout is within acceptable tolerance before drilling, as even minor runout at this diameter can cause bit breakage or oversized holes. Follow equipment manufacturer guidelines and applicable shop safety codes when operating high-speed drilling equipment.