M.a. Ford 30014050 Circuit Board Drill Bit Size 28

Product Description

The M.A. FORD 30014050 is a solid carbide, fast spiral circuit board drill bit designed for precision drilling in printed circuit board and similar tight-tolerance applications. Sized at wire gauge No. 28 (0.1405 inches / 3.57 mm), it features a 118-degree drill point angle and a right-hand cutting direction. The fast spiral geometry with a 35-degree helix angle clears chips efficiently, reducing heat buildup during high-cycle drilling. The tapered web configuration improves point stability and helps maintain hole accuracy in dense or multilayer materials. This bit is intended for use by machining professionals and skilled tradespeople who require consistent, repeatable results in small-diameter work.

This drill bit is suited for drilling cast iron, non-ferrous metals, plastics, and steel in light manufacturing, electronics assembly, and fabrication environments. With a 3/4-inch flute length and 1-1/2-inch overall length, it fits standard collet or chuck tooling used in CNC drilling stations, bench drill presses, and handheld precision drills. The heavy-duty grade solid carbide construction holds up in production environments where standard high-speed steel tooling wears prematurely. It ships as a single unit and is appropriate for spot replacement or low-volume inventory builds.

Key Features

• Solid carbide construction rated heavy-duty grade for extended tool life in production use
• No. 28 wire gauge size, 0.1405 inches (3.57 mm) diameter, with tight tolerance of -0.0005 to +0.0000 inches
• 118-degree drill point angle for clean entry in cast iron, non-ferrous metals, and plastics
• Fast spiral with 35-degree helix angle promotes efficient chip evacuation and reduced heat
• Tapered web configuration improves point rigidity and hole positional accuracy
• Right-hand cutting direction, uncoated finish, Series 300

Compatibility

Designed as an OEM-style replacement or direct-use circuit board drill bit compatible with collet and chuck tooling accepting a 3.57 mm (0.1405 inch) shank diameter. Suitable for use in CNC circuit board drilling machines and precision bench drill presses configured for small-diameter solid carbide tooling.

Installation Notes

Installation and tool changes should be performed by qualified machinists or tooling technicians with the spindle fully powered down and locked out before handling. Ensure the collet or chuck is properly sized for the 3.57 mm shank to prevent runout, which can fracture small-diameter carbide bits. Carbide tooling is brittle and should not be subjected to side loads or dropped on hard surfaces. Follow machine manufacturer guidelines for spindle speed and feed rate when drilling the specified workpiece materials.