M.a. Ford. 20510940T Screw Machine Drill Bit 7/64 in

Product Description

The M.A. FORD. 20510940T is a screw machine length drill bit designed for high-precision drilling in demanding metalworking applications. Built from solid carbide, it delivers superior hardness and wear resistance compared to high-speed steel alternatives. The bit measures 0.1094 inches (7/64 inch) in diameter with an overall length of 1.8125 inches and a flute length of 0.8125 inches. The 135-degree split point geometry reduces walking on entry and lowers thrust requirements. A slow spiral flute and web-thinned parallel web configuration control chip evacuation and improve cutting efficiency in tough materials.

This bit is suited for production and maintenance drilling in cast iron, non-ferrous metals, stainless steel, and carbon steel. The screw machine length body - shorter than jobber length - increases rigidity and reduces deflection, making it a reliable choice for drill press and CNC drilling operations where hole position accuracy matters. It is typically used by machinists, toolroom technicians, and precision fabricators working in shop environments with close-tolerance requirements.

Key Features

• Solid carbide construction for hardness and extended tool life in abrasive and hard materials
• 135-degree split point reduces drill walk and lowers entry thrust
• Web-thinned parallel web improves cutting performance and chip flow
• Screw machine (stub) length body increases rigidity and minimizes deflection
• Slow spiral flute geometry optimized for cast iron, stainless steel, and non-ferrous metals
• Diameter tolerance of +0.0000 to -0.0005 inches for consistent, repeatable hole sizing

Compatibility

Designed for use in standard straight-shank drill chucks on drill presses, CNC machining centers, and manual mills. Suitable for drilling cast iron, non-ferrous metal, stainless steel, and steel workpieces as specified for M.A. FORD. Series 205.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with carbide tooling. Solid carbide bits are brittle - avoid lateral loading, interrupted cuts at high feed rates, or dropping the tool on hard surfaces. Ensure the shank is fully seated and clamped securely in the drill chuck before operation. Verify spindle speed and feed rate are appropriate for the workpiece material and bit diameter before beginning the cut.