M.a. Ford 20423400 Solid Carbide Jobber Drill Bit Letter a

Product Description

The M.A. FORD 20423400 is a solid carbide jobber-length drill bit sized at Letter A (0.2340 inches) with a 118-degree four-facet point. It features a right-hand spiral flute with web thinning for improved chip evacuation and reduced thrust at entry. The overall length is 3.25 inches with a 2-inch flute length and a straight-cylindrical shank of 0.2340 inches in diameter. Manufactured to ISO 9001:2015 standards, this is a general-purpose drill bit suited for machinists, tool and die shops, and maintenance professionals working in metal fabrication environments.

This bit is designed for drilling cast iron, non-ferrous metals, stainless steel, and carbon or alloy steel. The solid carbide construction provides the rigidity and wear resistance needed for these harder and more abrasive materials. It is a Series 204 tool with a regular spiral and a 5xD flute-to-diameter ratio, making it appropriate for through-hole and blind-hole applications in production and job shop settings. No coolant-through capability is present, so external coolant or cutting fluid should be applied as needed for the workpiece material.

Key Features

• Solid carbide construction for superior wear resistance in hard and abrasive materials
• 118-degree four-facet point with web thinning for reduced entry thrust and improved centering
• Bright/uncoated finish suitable for general-purpose metal drilling
• Right-hand, regular spiral flute with 2-inch flute length for efficient chip removal
• Diameter tolerance of +0.0000 to -0.0005 inches for precise hole sizing
• ISO 9001:2015 certified manufacturing

Compatibility

Designed for general-purpose drilling in cast iron, non-ferrous metals, stainless steel, and steel workpieces. Compatible with standard drill chucks and CNC spindles accepting a 0.2340-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or tool operators familiar with carbide tooling. Secure the shank fully in the chuck or collet before operation to prevent runout or breakage, as carbide is brittle under lateral loading. Apply appropriate cutting fluid or coolant externally when drilling stainless steel or cast iron to manage heat buildup. Inspect the cutting edge before each use and replace at the first sign of chipping or dulling to maintain hole quality.