Precision Twist Drill 6000576 Cobalt Jobber Drill 9mm

Product Description

The PRECISION TWIST DRILL 6000576 is a cobalt jobber-length drill bit designed for heavy-duty drilling in steel and other demanding workpiece materials. It measures 9.00 mm (0.3543 inches) in diameter with an overall length of 4-59/64 inches (4.9219 inches) and a flute length of 3-3/16 inches. The 135-degree split point reduces walking on entry and lowers the thrust required to start a hole. The oxide and straw coating provides baseline lubricity and heat resistance during cutting. This drill is used by machinists, maintenance technicians, and fabricators working with ferrous metals and similar materials.

The 6000576 is built for general-purpose drilling in steel, cast iron, non-ferrous metals, and similar materials as indicated by the P, M, K, N, and S workpiece material codes. The straight cylindrical shank accepts standard drill chucks across a wide range of machines including drill presses, CNC machining centers, and hand drills. The regular spiral flute geometry promotes efficient chip evacuation during through-hole and blind-hole drilling. The web-thinned, tapered web configuration reduces cutting resistance on entry and improves centering performance at the drill point.

Key Features

• Cobalt high-speed steel construction rated for heavy-duty drilling in steel and ferrous alloys
• 135-degree split point reduces walking and lowers required feed pressure at hole entry
• Oxide and straw coating provides lubricity and surface protection during drilling
• Web-thinned, tapered web design reduces cutting resistance and improves point centering
• Regular spiral flute geometry with 9xD flute-to-diameter ratio supports efficient chip removal
• Conforms to DIN 338 and ANSI standards for jobber drill geometry and dimensional tolerances

Compatibility

Designed for use with standard drill chucks accepting straight cylindrical shanks in the 0.3500 to 0.4000 inch diameter range. Suitable for drill presses, CNC machining centers, and portable electric drills configured for jobber-length cobalt bits.

Installation Notes

This drill bit is installed by machinists and maintenance technicians into standard three-jaw or keyless drill chucks. Secure the shank fully in the chuck and confirm runout before drilling. Coolant-through is not supported on this bit, so apply cutting fluid externally when drilling deep holes or hard ferrous materials. Do not exceed the recommended maximum drilling depth of 3.1890 inches for this bit diameter.