Precision Twist Drill 6000706 Jobber Drill Bit 4.10mm

Product Description

The PRECISION TWIST DRILL 6000706 is a cobalt jobber-length drill bit designed for general-purpose drilling in steel, cast iron, aluminum, and non-ferrous materials. The 4.10 mm (0.1614 inch) diameter bit features a 135-degree split point that reduces walking and allows drilling without a center punch on most surfaces. A straw oxide finish provides mild lubricity and heat resistance during cutting. The tapered web and web-thinned geometry reduce thrust and improve chip evacuation in deeper holes. At 2-61/64 inches overall length with a 1-11/16 inch flute, this bit fits standard keyless or keyed chucks in hand drills, drill presses, and CNC machines. It meets ANSI and DIN 338 specifications and is rated heavy duty for production-level use.

This bit is suited for drilling steel, stainless, cast iron, copper, aluminum, and similar workpiece materials classified under DIN material codes P, M, K, N, and S. Typical applications include fabrication shops, mechanical contractors, HVAC technicians drilling sheet metal and structural steel, plumbers drilling pipe hangers and anchor points, and electricians boring through steel studs and junction boxes. The straight cylindrical shank and standard jobber length make it a direct drop-in for most portable drills and bench-mounted drill presses used in trade work.

Key Features

• Cobalt construction provides elevated heat resistance for drilling hard steels and stainless
• 135-degree split point reduces bit walking and lowers required feed force
• Straw oxide finish adds lubricity and mild corrosion protection to the cutting surfaces
• Web-thinned, tapered web geometry improves chip flow and reduces thrust in deep cuts
• Regular spiral flute with 10xD flute-to-diameter ratio for efficient chip evacuation
• Meets ANSI and DIN 338 standards for jobber-length geometry and tolerances

Compatibility

Designed as a general-purpose jobber drill bit compatible with standard straight-shank chucks. Suitable for hand drills, drill presses, and CNC drilling applications where a 4.10 mm straight-shank bit is specified per DIN 338.

Installation Notes

Installation of this bit is performed by machinists, fabricators, and licensed trade professionals using standard drill chucks. Secure the shank fully in the chuck before applying power and verify chuck key or collar is tightened. Use appropriate cutting fluid or coolant when drilling hard steels to extend bit life and prevent overheating. Do not exceed the rated maximum drilling depth of 1.6929 inches without retracting to clear chips.