M.a. Ford 20650000 Carbide Screw Machine Drill Bit 1/2 in

Product Description

The M.A. FORD 20650000 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding industrial and machining environments. Built to Series 206 specifications, this bit features a 1/2 inch diameter, a 118-degree faceted point angle, and a right-hand spiral flute configuration. The web-thinned, parallel web construction reduces thrust requirements and improves chip evacuation at entry. At 3 inches overall length, the shorter screw machine format provides rigidity and minimizes deflection in production drilling applications. Installed by machinists and tool-and-die professionals, this bit delivers consistent dimensional accuracy with a tight diameter tolerance of +0.0000 to -0.0005 inches.

This drill bit is suited for production and job-shop environments where short-length rigidity is critical. Primary workpiece materials include cast iron, non-ferrous metals, stainless steel, and steel. The straight-cylindrical shank seats cleanly in standard drill chucks and collet holders without modification. The bright uncoated finish makes this bit appropriate for applications where coating compatibility with cutting fluids or specific materials is a consideration. It is typically used in drill presses, CNC machining centers, and manual mill setups requiring a stubby, stable cutting tool.

Key Features

• Solid carbide construction for hardness and heat resistance in ferrous and non-ferrous materials
• 118-degree faceted point angle with web thinning to reduce entry thrust
• Screw machine (short) length at 3 inches overall for maximum rigidity and reduced deflection
• Right-hand spiral flute with 3xD flute-to-diameter ratio for efficient chip removal
• Straight-cylindrical shank at 1/2 inch diameter for universal chuck and collet compatibility
• Tight diameter tolerance of +0.0000 to -0.0005 inches for precision hole sizing

Compatibility

Designed for use in standard 1/2 inch drill chucks and collet systems across drill presses, CNC machining centers, and manual milling machines. Compatible with cast iron, non-ferrous metal, stainless steel, and steel workpieces as specified by the manufacturer for Series 206.

Installation Notes

This bit is installed by machinists and CNC operators in machine tool spindles using appropriate chuck or collet tooling. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify shank seating and runout before beginning a cut, as carbide is brittle and sensitive to side loading or interrupted cuts without proper setup. Coolant-through is not supported on this bit; apply cutting fluid externally as required by the workpiece material.