M.a. Ford. 30612850 Circuit Board Drill Bit No. 30

Product Description

The M.A. FORD. 30612850 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and high-accuracy machining applications. It carries a No. 30 wire gauge size, which corresponds to 0.1285 inches (3.26 mm) in diameter, and features a 165-degree split-point geometry that reduces walking and improves entry accuracy on hard or layered substrates. The fast spiral flute design with a 35-degree helix angle promotes efficient chip evacuation during high-speed drilling. The shank diameter is 1/8 inch (0.1250 inches), and the overall length is 1.5 inches. It is sold individually and is part of the M.A. FORD. Series 306 line of precision drilling tools.

This drill bit is suited for drilling cast iron, stainless steel, carbon steel, high-temperature alloys, titanium, non-ferrous metals, and hard materials. The uncoated solid carbide construction makes it appropriate for applications where tight dimensional tolerances are required. A right-hand cutting direction and tapered web configuration are standard for this bit, making it a common choice in electronics manufacturing, toolroom work, and precision machining environments where small-diameter, accurate holes are needed in dense or abrasive workpiece materials.

Key Features

• No. 30 wire gauge size — 0.1285 inches (3.26 mm) drill diameter
• 165-degree split-point tip reduces bit walking and improves hole entry accuracy
• Fast spiral flute with 35-degree helix angle for efficient chip removal
• Solid carbide construction provides rigidity and wear resistance in hard materials
• Tapered web configuration with right-hand cutting direction
• Diameter tolerance held to -0.0005 to +0.0000 inches for precision fitment

Compatibility

Designed as an OEM-style replacement and production drill bit for circuit board drilling operations and precision machining applications requiring a No. 30 wire gauge, 1/8-inch shank drill in solid carbide. Part of the M.A. FORD. Series 306 replacement and web-only drill bit line.

Installation Notes

This drill bit is installed and operated by machinists, CNC technicians, or electronics manufacturing professionals using drill presses, CNC drilling machines, or PCB drilling equipment. Ensure the spindle and collet are clean and properly sized for the 1/8-inch shank before seating the bit. Solid carbide bits are brittle — avoid side loading, interrupted cuts without proper feed rates, or over-tightening in the collet. Follow equipment manufacturer guidelines for spindle speed and feed rate based on workpiece material.