M.a. Ford 20604650 Screw Machine Drill Bit 0.0465 in

Product Description

The M.A. FORD 20604650 is a screw machine length (short length) solid carbide drill bit designed for precision drilling in demanding production environments. It carries a wire gauge diameter of 0.0465 inches, equivalent to a No. 56 wire size, with a bright/uncoated finish and a 118-degree faceted drill point. The two-flute, regular spiral design provides efficient chip evacuation, while the web-thinned construction reduces thrust requirements at entry. At 1.5 inches overall length with a 0.375-inch flute and a straight-cylindrical shank, this bit is sized for close-tolerance work in drill presses, CNC machining centers, and screw machine applications.

This drill bit is suited for production drilling in cast iron, non-ferrous metals, stainless steel, and carbon steel. The short overall length improves rigidity and minimizes deflection, making it a practical choice for high-volume drilling operations where hole location accuracy and finish are critical. Machinists and toolroom technicians working in job shops or production facilities will find this bit appropriate for small-diameter through-holes and blind holes in both ferrous and non-ferrous workpieces.

Key Features

• Solid carbide construction for hardness and wear resistance in abrasive materials
• No. 56 wire size, 0.0465-inch diameter with diameter tolerance of +0.0000 to -0.0005 inches
• 118-degree faceted drill point for accurate entry and reduced walking
• Web-thinned parallel web reduces axial thrust at the cutting tip
• Right hand cut, regular spiral flute for consistent chip clearing
• Straight-cylindrical shank compatible with standard collets and chucks
• Coolant-through not required; compatible with flood or mist coolant at the exterior

Compatibility

Designed as an OEM-style replacement or production tooling option for applications requiring a No. 56 wire size drill in Series 206 screw machine length geometry. Compatible with cast iron, non-ferrous metal, stainless steel, and steel workpiece materials as specified by the manufacturer.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Secure the straight-cylindrical shank fully in a collet or drill chuck rated for the spindle speed required by the workpiece material and diameter. Carbide bits are brittle and require rigid setups with minimal runout to avoid tip fracture. Power down and lock out the machine spindle before changing or inspecting tooling.