Guhring 9006600004500 Micro Drill Bit Cobalt Tin 118pt

Product Description

The GUHRING 9006600004500 is a cobalt micro drill bit designed for precision drilling in tight-tolerance applications. It carries a 118-degree faceted point angle with web thinning on a tapered web, which reduces thrust and improves centering at entry. The bit measures 0.0177 inches in diameter with an overall length of 0.984 inches and a spiral flute length of approximately 3.00 mm. A titanium nitride (TiN) coating extends surface hardness and tool life. The straight-cylindrical shank seats in standard collet chucks and precision drill presses. This tool is typically installed and operated by machinists, toolroom technicians, and precision fabricators working with micro-scale hole requirements.

The 9006600004500 is rated primarily for non-ferrous and light alloy workpiece materials including aluminum (material codes K, M, N, P) and secondarily for titanium alloys (material code S). It conforms to DIN 1899 specification for jobber-style micro drills. The 5xD flute-to-diameter ratio and right-hand spiral flute geometry make it suitable for PCB, medical component, aerospace, and fine-tolerance machining applications where small-diameter entry holes are required. Maximum drilling depth is 0.0920 inches (2.33 mm).

Key Features

• Cobalt tool material provides elevated heat and wear resistance over standard HSS
• TiN coating adds surface hardness and reduces friction at the cutting edge
• 118-degree faceted point with web thinning reduces drill entry thrust and improves hole accuracy
• Right-hand spiral flute promotes chip evacuation in shallow micro-drilling passes
• Straight-cylindrical shank compatible with standard collet and precision chuck systems
• DIN 1899 specification ensures dimensional conformance for interchangeable tooling programs

Compatibility

Designed as an OEM-specification micro drill bit conforming to DIN 1899 for use in collet chucks and precision drill presses accepting a 1.00 mm straight-cylindrical shank. Primary workpiece materials per manufacturer rating are aluminum and non-ferrous alloys; secondary rated material is titanium alloy.

Installation Notes

Installation and operation should be performed by qualified machinists or toolroom personnel familiar with micro-diameter tooling. Secure the shank fully in a precision collet or drill chuck before operation and verify runout within acceptable tolerance for the application. Micro drill bits are brittle at this diameter — do not apply side load, use appropriate low-vibration spindles, and keep drilling depth within the rated maximum of 0.0920 inches. Inspect the cutting edge before each use; discard if chipping or edge rollover is observed.