M.a. Ford 30014400 No.27 Circuit Board Drill Bit

Product Description

The M.A. FORD 30014400 is a solid carbide, fast spiral circuit board drill bit sized to wire gauge No. 27, with a decimal diameter of 0.1440 inches (3.66 mm). It features a 118-degree drill point angle and a right-hand cutting direction with a 35-degree helix angle. The tapered web configuration improves chip evacuation and reduces walking at entry. With a flute length of 0.75 inches and an overall length of 1.5 inches, this compact bit is designed for precision drilling in printed circuit board (PCB) fabrication, light metalwork, and plastics applications. Licensed technicians, machinists, and electronics assembly professionals are the typical end users.

This bit is engineered for use in cast iron, non-ferrous metals, and plastics, making it well-suited for PCB drilling operations and general precision work where a tight-tolerance hole is required. The Series 300 designation places it in M.A. FORD's heavy-duty circuit board drill line, intended for both production environments and job-shop use. Its uncoated solid carbide construction delivers consistent cutting performance in materials that quickly dull high-speed steel tooling.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• 118-degree drill point angle suited for cast iron, non-ferrous metals, and plastics
• Fast spiral with 35-degree helix angle promotes efficient chip removal
• Tapered web configuration reduces entry force and improves hole location accuracy
• Right-hand cutting direction, compatible with standard CNC and benchtop drill spindles
• Tight diameter tolerance of -0.0005 to +0.0000 inches ensures precise hole sizing

Compatibility

Designed as a Series 300 heavy-duty circuit board drill bit suitable for CNC drilling machines, benchtop drill presses, and PCB drilling equipment that accept a 3.66 mm (0.1440 inch) shank diameter. Rated for cast iron, non-ferrous metals, and plastics workpiece materials.

Installation Notes

Solid carbide drill bits should be installed in a collet or chuck rated for the 3.66 mm shank diameter and inspected for runout before use, as carbide is brittle and sensitive to lateral loading. Always verify spindle speed and feed rate against the bit diameter and workpiece material before commencing drilling. Secure the workpiece firmly to prevent movement, which can cause bit breakage. Carbide tooling should be handled carefully to avoid chipping the cutting edges during storage and changeover.