Guhring 9006600011500 Micro Drill Bit 0.0453 in Cobalt

Product Description

The GUHRING 9006600011500 is a cobalt micro drill bit engineered for precision drilling in demanding metalworking and machining applications. Built to DIN 1899 standards, this bit features a 0.0453 inch diameter with a 118-degree faceted point angle and a TiN (titanium nitride) coating that extends tool life in abrasive materials. The spiral flute geometry promotes efficient chip evacuation, while the web-thinned, tapered web configuration reduces thrust force at entry. With an overall length of 0.984 inches and a 1.50 mm straight-cylindrical shank, it is sized for precision chucks and collet holders used in CNC and manual drilling operations. Machinists and toolroom technicians are the primary installers of this bit.

This bit is rated for use on aluminum and non-ferrous materials (material code K, M, N, P) as its primary workpiece category, with titanium alloys (material code S) as a secondary application. The Series 660 design follows a 5xD flute-by-diameter ratio, making it well suited for shallow to moderate-depth bores up to a maximum drilling depth of 0.231 inches (5.88 mm). It is a strong fit for precision component manufacturing, aerospace part drilling, and close-tolerance production work where micro-diameter consistency is critical. Coolant-through capability is not included in this configuration.

Key Features

• Cobalt construction with TiN coating for improved wear resistance and heat tolerance
• 118-degree faceted point with web thinning reduces entry thrust and improves centering
• Spiral flute with tapered web configuration promotes chip evacuation in deep cuts
• Diameter tolerance held to +0.000 to -0.004 mm for consistent close-tolerance drilling
• DIN 1899 specification compliance ensures dimensional standardization
• Straight-cylindrical shank fits standard precision chucks and collet systems

Compatibility

Designed as a DIN 1899 Series 660 micro drill bit with a 1.50 mm straight-cylindrical shank, suitable for precision chucks and collet holders accepting that shank diameter. Primary workpiece materials include aluminum and non-ferrous metals (K, M, N, P); secondary compatibility includes titanium alloys (S).

Installation Notes

This bit is installed by machinists or toolroom technicians in CNC machining centers or manual drill presses equipped with precision collet or chuck systems. Ensure the shank seating and chuck runout are within acceptable tolerances before operation, as micro-diameter bits are sensitive to misalignment. Do not exceed the maximum drilling depth of 0.231 inches in a single pass without retracting to clear chips. Follow applicable shop safety procedures and machine manufacturer guidelines when working with micro drill tooling.