Guhring 9006600003600 Cobalt Micro Drill Bit 0.0142 in

Product Description

The GUHRING 9006600003600 is a cobalt micro drill bit engineered for precision drilling in small-diameter applications. Measuring 0.0142 inches in diameter with a 0.984-inch overall length, this bit features a 118-degree faceted point and a TiN (titanium nitride) coating that extends tool life in abrasive materials. The spiral flute geometry, combined with a web-thinned and tapered web configuration, promotes clean chip evacuation at reduced feed forces. A straight-cylindrical shank with a 1.00 mm diameter seats securely in standard collets and chucks. This bit conforms to DIN 1899 specification and is suited for machinists, tool-and-die technicians, and precision fabricators working with tight-tolerance bores.

The 9006600003600 is built for drilling aluminum, titanium alloys, and similar workpiece materials where micro-diameter accuracy is critical. With a 5xD flute-to-diameter ratio and a maximum drilling depth of 0.073 inches (1.86 mm), it is appropriate for shallow, high-precision holes in aerospace components, electronic housings, medical device fixtures, and similar precision-machined parts. Right-hand cutting direction is standard for conventional CNC machining center spindles and manual drill presses with appropriate speed control.

Key Features

• 0.0142-inch diameter with a diameter tolerance of +0.000 to -0.004 mm for tight-tolerance bore requirements
• Cobalt substrate provides elevated heat resistance compared to standard high-speed steel
• TiN coating reduces friction and extends cutting edge life in aluminum and titanium alloy workpieces
• 118-degree faceted point with web thinning reduces thrust force at entry and improves centering
• Spiral flute with 5xD ratio supports chip evacuation at micro diameters
• Conforms to DIN 1899 standard for micro drill geometry and dimensional consistency

Compatibility

Designed for use with aluminum (material code K, M, N, P) and titanium alloy (material code S) workpieces per GUHRING Series 660 application guidelines. Straight-cylindrical 1.00 mm shank is compatible with standard collet chucks and precision drill chucks accepting that shank diameter.

Installation Notes

Micro drill bits of this diameter require a rigid, high-speed spindle setup with minimal runout to prevent breakage — verify chuck and collet concentricity before use. Ensure the workpiece is securely fixtured and that spindle speed is set appropriately for the workpiece material and diameter. Coolant-through is not supported on this bit; use external coolant or mist lubrication as required by the workpiece material. Handle and store micro drills individually or in protective sleeves to prevent tip damage.