Precision Twist Drill 6000658 Cobalt Jobber Drill 3mm

Product Description

The PRECISION TWIST DRILL 6000658 is a cobalt jobber-length drill bit engineered for heavy-duty drilling in steel and other demanding materials. Built to DIN 338 and ANSI standards, it features a 135-degree split point that reduces walking and improves hole entry accuracy. The oxide and bronze straw coating resists heat and extends tool life under sustained cutting loads. At 3.00 mm in diameter with a 2-13/32-inch overall length and a 1-19/64-inch flute length, this bit is sized for precision work in tight tolerances. The two-flute regular spiral design evacuates chips efficiently, keeping the cut clean. Licensed tradespeople and machinists reach for this bit when general-purpose drilling performance is required in metal fabrication and maintenance applications.

This drill bit is suited for drilling steel, cast iron, aluminum, nonferrous metals, and superalloys, corresponding to material codes P, M, K, N, and S. Its straight cylindrical shank fits standard drill chucks without adapters, making it compatible with hand drills, drill presses, CNC machining centers, and multi-spindle setups. The web-thinned, tapered web geometry reduces thrust force, which is especially useful on thinner workpieces or when working in confined spaces on a shop floor or in the field.

Key Features

• Cobalt high-speed steel construction for improved heat and wear resistance over standard HSS
• 135-degree split point reduces drill walk and lowers required feed pressure at hole entry
• Oxide and bronze straw coating extends tool life and reduces friction during cutting
• Web-thinned tapered web reduces axial thrust for cleaner, more controlled drilling
• Right-hand, regular spiral two-flute design promotes efficient chip evacuation
• Meets DIN 338 and ANSI standards for consistent dimensional accuracy

Compatibility

Designed as a general-purpose jobber drill compatible with standard drill chucks accepting straight cylindrical shanks in the 3.00 mm diameter range. Suited for drilling steel, cast iron, aluminum, nonferrous metals, and high-temperature alloys across Series 2ACO applications.

Installation Notes

Installation is performed by machinists, tool-and-die professionals, or qualified maintenance technicians. Secure the straight shank fully in the drill chuck and verify runout before beginning a cut. Ensure the workpiece is firmly clamped or fixtured before drilling to prevent movement. Do not exceed the recommended maximum drilling depth of approximately 1.30 inches for this diameter without retracting to clear chips.