M.a. Ford. 22643310 Screw Machine Drill Bit Carbide

Product Description

The M.A. FORD. 22643310 is a solid carbide screw machine length drill bit designed for high-precision drilling in demanding shop and production environments. Measuring 0.4331 inches (11.00 mm) in diameter with an overall length of 3.7402 inches (95.00 mm), this short-length bit delivers the rigidity needed for accurate hole location and tight tolerances. The 118-degree faceted point and web-thinned geometry reduce entry force and help center the bit without walking. Machinists, tool-and-die techs, and production drilling operators are the primary users of this type of tooling.

This drill bit is built for production and precision drilling in cast iron, non-ferrous metals, stainless steel, and steel. Its short screw machine length profile makes it well suited for CNC machining centers, drill presses, and turret lathes where stub-length rigidity matters. The straight-cylindrical shank seats directly in standard drill chucks or collets without adapters. It conforms to DIN 6539 specification, making it appropriate for shops that work to metric or international tooling standards.

Key Features

• Solid carbide construction provides hardness and wear resistance for production-volume drilling
• 118-degree faceted point with web thinning reduces thrust and improves centering on entry
• Bright/uncoated finish suitable for use with or without cutting fluid on compatible workpiece materials
• Right-hand cut with 2-flute regular spiral for efficient chip evacuation
• Straight-cylindrical shank at 0.4331 inches diameter fits standard chucks and collets directly
• Diameter tolerance held to +0.0000 to -0.0005 inches for close-tolerance hole work

Compatibility

Designed for use in standard drill chucks, collets, and toolholders accepting a 0.4331-inch straight-cylindrical shank. Primary workpiece materials include cast iron, non-ferrous metal, stainless steel, and steel per manufacturer specification.

Installation Notes

Installation and use of carbide drill bits should be performed by qualified machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Carbide is brittle compared to high-speed steel — avoid side loading, interrupted cuts beyond the tool's rated capacity, or dropping the bit on hard surfaces. Verify chuck or collet runout is within acceptable limits before use to protect the cutting edge and maintain hole tolerance.