M.a. Ford 20615700 Screw Machine Drill Bit 0.157 in Carbide

Product Description

The M.A. FORD 20615700 is a screw machine length (stub length) drill bit designed for high-precision drilling in demanding production environments. Built from solid carbide with a bright/uncoated finish, this bit delivers the hardness and edge retention needed when working through cast iron, stainless steel, carbon steel, and non-ferrous metals. At 0.157 inches in diameter (wire size 22), it features a 118-degree faceted point angle and a web-thinned parallel web for reduced thrust on entry. The straight-cylindrical shank seats cleanly in standard drill chucks and collet holders. This bit is a Series 206 tool intended for machinists, tool-and-die professionals, and shop technicians running drill presses, CNC machining centers, or manual mills.

This drill bit suits precision metalworking applications where short overall length provides added rigidity and reduced deflection. The 2 inch overall length and 0.75 inch flute length make it well suited for shallow-hole operations in tight setups or fixture work. The right-hand spiral flute geometry evacuates chips efficiently during through-hole and blind-hole drilling in steel, stainless steel, cast iron, and non-ferrous alloys. It is sold as a single unit and is appropriate for professional machine shops, maintenance and repair operations, and production floor tooling.

Key Features

• Solid carbide construction for superior hardness and wear resistance in ferrous and non-ferrous metals
• 118-degree faceted drill point for clean, accurate hole entry
• Web-thinned parallel web reduces axial thrust and improves penetration
• Screw machine (short) length provides added rigidity and minimizes deflection
• Right-hand spiral flute with 3xD flute-to-diameter ratio for efficient chip evacuation
• Straight-cylindrical shank compatible with standard chucks and collet toolholding systems
• Bright/uncoated finish suitable for use with cutting fluids across a range of workpiece materials

Compatibility

Designed for use in drill presses, CNC machining centers, and manual mills accepting a 0.157 inch straight-cylindrical shank. Suitable for drilling cast iron, non-ferrous metals, stainless steel, and carbon steel per M.A. FORD Series 206 application guidelines.

Installation Notes

This tool is installed by qualified machinists or tooling technicians familiar with rotating cutting tool setup. Secure the shank fully in the chuck or collet holder and verify runout before operation. Always follow machine manufacturer speeds and feeds for solid carbide tooling in the target workpiece material. Ensure the spindle is fully stopped and the machine is powered down before changing or inspecting the bit.