Precision Twist Drill 6000642 Cobalt Jobber Drill 2.60mm

Product Description

The PRECISION TWIST DRILL 6000642 is a cobalt jobber-length drill bit designed for general-purpose drilling in steel and other demanding workpiece materials. It measures 2.60 mm (0.1024 inches) in diameter with an overall length of 2.25 inches and a flute length of 1.1875 inches. The 135-degree split point reduces walking on contact and requires no center punch for most applications. A straw oxide finish provides basic lubricity and corrosion resistance. The web-thinned, tapered-web design reduces thrust force during penetration, making it a practical choice for production drilling and field maintenance work performed by machinists, pipefitters, and HVAC sheet-metal technicians.

This bit is suited for drilling steel, cast iron, nonferrous metals, and similar materials encountered in light manufacturing, mechanical contracting, and equipment repair. The straight cylindrical shank fits standard drill chucks without adapters. The regular spiral flute geometry promotes chip evacuation in through-hole and blind-hole drilling at typical hand-drill and drill-press feeds. The Series 2ACO construction meets DIN 338 and ANSI standards, making it an accepted specification for trade and shop use.

Key Features

• Cobalt high-speed steel construction for increased heat and wear resistance in steel drilling
• 135-degree split point reduces drill walk and lowers required thrust force
• Web-thinned, tapered-web geometry improves penetration efficiency
• Straw oxide finish adds surface lubricity and light corrosion protection
• Regular spiral flute promotes chip clearance in both through and blind holes
• Meets DIN 338 and ANSI standards for dimensional consistency

Compatibility

Designed as a general-purpose jobber drill for steel and multi-material drilling applications; fits any standard drill chuck accepting a 2.60 mm (0.1024 inch) straight cylindrical shank.

Installation Notes

This drill bit is installed and used by machinists, sheet-metal workers, pipefitters, and general mechanical trades. Secure the shank fully in a keyed or keyless chuck before operation and verify chuck tightening before applying feed force. Use appropriate cutting fluid or coolant when drilling steel at higher speeds to extend tool life; coolant-through is not supported by this bit. Inspect the cutting edges for chipping or wear before each use and replace when the point shows visible rounding or burn marks.