Precision Twist Drill 6000741 Cobalt Jobber Drill 5.60mm

Product Description

The PRECISION TWIST DRILL 6000741 is a cobalt jobber-length drill bit designed for production and maintenance drilling in steel and other demanding workpiece materials. The bit features a 135-degree split point with web thinning, which reduces walking on entry and lowers thrust force compared to a conventional 118-degree point. At 3-21/32 inches overall length with a 2-1/4 inch flute length, it fits standard three-jaw chucks and drill presses without modification. The oxide and straw finish provides mild lubricity and heat resistance during cutting. This is a heavy-duty, general-purpose bit suited for machinists, maintenance technicians, and tool-room applications.

The 6000741 is rated for drilling steel and is classified under workpiece material codes P, M, K, N, and S, covering carbon steels, alloy steels, cast iron, non-ferrous metals, and heat-resistant alloys. The 5.60 mm diameter with a straight cylindrical shank of equal diameter makes it compatible with standard collets and keyless chucks. The regular spiral flute design promotes chip evacuation in through-hole and blind-hole drilling operations. It conforms to DIN 338 and ANSI standards, making it a recognized specification for replacement or direct procurement in machine shops and field service environments.

Key Features

• Cobalt construction for elevated heat resistance and edge retention in steel drilling
• 135-degree split point with web thinning reduces thrust and self-centers on entry
• Oxide and straw finish provides surface lubricity and mild corrosion protection
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Straight cylindrical shank fits standard drill chucks and collets without adapters
• Conforms to DIN 338 and ANSI specifications for consistent geometry and sizing

Compatibility

Designed for drilling steel, alloy steel, cast iron, non-ferrous metals, and heat-resistant alloys per workpiece material codes P, M, K, N, and S. Straight shank fits any standard three-jaw or keyless chuck accepting a 5.60 mm (0.2205 inch) shank. Conforms to DIN 338 Series 2ACO geometry.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard drill press, milling machine, or hand drill with an appropriate chuck. Secure the shank fully in the chuck before operation and verify runout before drilling production parts. Use appropriate cutting fluid for steel applications to extend tool life and improve hole finish. Do not exceed the rated maximum drilling depth of 2.2441 inches in a single pass without retracting to clear chips.