M.a. Ford 20505900T Screw Machine Drill Bit 0.059in Carbide

Product Description

The M.A. FORD 20505900T is a screw machine length drill bit designed for high-precision drilling in demanding industrial and machining applications. Built from solid carbide with a coated finish, this bit measures 0.059 inches (1.50 mm) in diameter and carries a 135-degree split point for accurate self-centering entry with minimal walking. The overall length is approximately 1.614 inches (41.00 mm), making it well suited for compact setups and short-travel spindles. The two-flute slow spiral design and web-thinned, parallel web configuration help manage chip evacuation and reduce thrust in difficult materials. This bit is installed by machinists, tool-and-die professionals, and precision fabricators.

The 20505900T is intended for use in CNC machining centers, drill presses, and screw machine setups where short, rigid tooling is required. Primary workpiece materials include cast iron, non-ferrous metals, stainless steel, and steel. The straight-cylindrical shank at 0.059 inches diameter seats directly into standard collets and chucks sized for that bore. The screw machine length geometry keeps deflection low when drilling small-diameter holes in tough alloys, making it a practical choice for tight-tolerance production work.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and non-ferrous materials
• 135-degree split point reduces entry thrust and self-centers without a pilot hole
• Two-flute slow spiral with web thinning promotes chip flow in deep, small-diameter holes
• Screw machine length profile minimizes overhang and deflection in short-travel setups
• Coated finish extends cutting life across cast iron, stainless steel, and steel workpieces
• Diameter tolerance of +0.0000 to -0.0005 inches supports close-tolerance hole requirements

Compatibility

Designed for use in CNC machining centers, drill presses, and screw machine equipment accepting a straight-cylindrical shank at 0.059 inches diameter. Rated for cast iron, non-ferrous metal, stainless steel, and steel workpieces per M.A. FORD Series 205 specifications.

Installation Notes

Installation is performed by machinists or tooling technicians. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Seat the straight shank fully and evenly in the collet or chuck before tightening to avoid runout. Because this bit operates at a small diameter, excessive feed rate or lateral force will cause breakage; follow the tooling manufacturer's recommended speeds and feeds for the workpiece material and machine type.