Guhring 9006180066000 Cobalt Extra Length Drill Bit

Product Description

The GUHRING 9006180066000 is a cobalt, uncoated extra length drill bit engineered for deep hole drilling in demanding industrial and production environments. With a 0.2598-inch diameter and an overall length of 8.465 inches, this Series 618 bit features a parabolic flute design and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation in deep-hole applications. The 130-degree drill point is suited for harder and varied workpiece materials. Right-hand cutting direction and a straight-cylindrical shank at 0.2598 inches in diameter allow for straightforward installation in standard drill chucks and collet holders. Licensed HVAC techs, machinists, and tool-and-die professionals select this bit when standard-length drills cannot reach required depths.

This drill bit is designed for use on aluminum, titanium alloy, and steel workpieces, covering material codes K, M, N, P, S, and H. The 15xD flute-to-diameter ratio and a maximum drilling depth of 5.516 inches (140.10 mm) make it well suited for through-holes and deep blind holes in aerospace, automotive, and general metalworking applications. The parabolic flute geometry promotes efficient chip removal, reducing heat buildup and the risk of chip packing in deep-hole operations. Machinists working on CNC machining centers, drill presses, and manual lathes with drilling capability will find this bit consistent with production-grade tooling requirements.

Key Features

• Cobalt high-performance tool material for improved heat and wear resistance compared to standard HSS
• Parabolic flute geometry promotes fast chip evacuation during deep-hole drilling
• Web-thinned, tapered web reduces cutting thrust and improves point penetration
• 130-degree drill point angle suited for aluminum, titanium alloy, and steel workpieces
• 15xD flute-to-diameter ratio supports maximum drilling depth of 5.516 inches (140.10 mm)
• Uncoated finish maintains dimensional consistency and simplifies regrinding
• Conforms to DIN 1869 specification for extra length drill geometry

Compatibility

Designed as a DIN 1869-compliant extra length drill bit for use in standard straight-shank drill chucks and collet holders accepting a 0.2598-inch shank. Primary workpiece materials are aluminum and titanium alloy; secondary workpiece material is steel.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tool operators familiar with proper speeds and feeds for cobalt tooling in the applicable workpiece material. Secure the straight-cylindrical shank firmly in a properly sized collet or drill chuck before use, and verify runout before beginning the cut. Reduce spindle speed and increase feed incrementally when drilling deep holes to prevent chip packing and tool breakage. Disconnect power to the machine and follow standard lockout/tagout procedures before changing tooling.