M.a. Ford. 20606350 Carbide Screw Machine Drill Bit 52

Product Description

The M.A. FORD. 20606350 is a solid carbide screw machine length drill bit designed for high-precision drilling in demanding materials. It carries a wire gauge size of 52, equivalent to 0.0635 inches in diameter, with a 118-degree faceted point angle and a web-thinned geometry that reduces entry force and improves chip clearance. The bright uncoated finish is suited for applications where coating buildup or thermal incompatibility is a concern. At 1.5 inches overall length, this short-series bit fits tight-clearance setups and screw machine spindles. Two spiral flutes with a regular helix and parallel web configuration promote consistent chip evacuation. Licensed machinists and toolroom technicians are the primary users of this bit.

This drill bit is rated for use in cast iron, non-ferrous metals, stainless steel, and steel. Its screw machine length format makes it a common choice for CNC machining centers, turret lathes, and screw machine operations where rigidity and minimal runout are critical. The straight cylindrical shank at 0.0635 inches diameter seats cleanly in standard drill chucks and collets. Applications include production drilling, prototype work, and repair machining where small-diameter precision holes are required in hard or abrasive workpiece materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• Wire size 52 (0.0635 inches) diameter with tight tolerance of +0.0000 to -0.0005 inches
• 118-degree faceted point with web-thinned design reduces thrust force on entry
• Regular spiral flute with 3xD flute-to-diameter ratio supports efficient chip removal
• Bright uncoated finish compatible with a wide range of cutting fluids and dry cutting setups
• Short screw machine length at 1.5 inches overall for maximum rigidity in close-quarter drilling

Compatibility

Designed as an OEM-style replacement and standard tooling option for screw machines, CNC lathes, and machining centers that accept straight cylindrical shank drill bits in the 0.0635 inch diameter range.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the spindle and chuck are fully de-energized and at rest before changing tooling. Seat the straight shank fully into the collet or drill chuck and verify runout before beginning a cut. Carbide tooling is brittle and should not be used in applications with excessive vibration or interrupted cuts without confirming the bit is rated for that condition.