M.a. Ford. 20428120 Carbide Jobber Drill Bit 9/32 in

Product Description

The M.A. FORD. 20428120 is a solid carbide jobber length drill bit with a 9/32 inch (0.2812 inch) diameter and a 118-degree faceted point angle. It features a regular spiral flute, a web-thinned tapered web configuration, and a bright uncoated finish. The overall length is 3-1/2 inches with a 2-1/8 inch flute length and a straight-cylindrical shank. Designed for general-purpose drilling in demanding materials, this bit is suited for machinists, metalworking shops, and trade professionals working with cast iron, non-ferrous metals, stainless steel, and carbon steel. The right-hand cut geometry and solid carbide construction deliver consistent hole quality across a wide range of workpiece materials.

This drill bit is intended for use in drill presses, CNC machining centers, and hand-held power drills where a standard jobber length reach is appropriate. Its Series 204 classification places it in a general-purpose carbide line capable of handling cast iron, stainless steel, non-ferrous metals, and steel. With a 5xD flute-to-diameter ratio, it is well suited for through-hole drilling applications in production and maintenance environments. No coolant-through capability is present, so external coolant or cutting fluid is recommended when drilling stainless or hardened steels.

Key Features

• Solid carbide construction for extended tool life in ferrous and non-ferrous materials
• 118-degree faceted point angle with web thinning for reduced thrust and improved chip evacuation
• Regular spiral flute, 2-flute design, right-hand cut
• Bright uncoated finish suitable for general-purpose drilling without coating interference
• Straight-cylindrical shank compatible with standard drill chucks
• ISO 9001:2015 certified manufacturing for dimensional consistency

Compatibility

Designed as a general-purpose jobber length drill bit for use in cast iron, non-ferrous metals, stainless steel, and steel workpieces. Compatible with standard drill chucks accepting a 9/32 inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with rotating cutting tools. Secure the workpiece firmly before drilling and confirm the chuck is tightened to the shank diameter. External cutting fluid or coolant is recommended for stainless steel and cast iron to prevent overheating. Inspect the cutting edges before each use and replace the bit if chipping or wear is detected.