Guhring 9006600005900 Micro Drill Bit 0.0232 in Cobalt

Product Description

The GUHRING 9006600005900 is a cobalt micro drill bit designed for precision drilling in tight-tolerance applications. It measures 0.0232 inches in diameter with an overall length of 0.984 inches and a 118-degree faceted point angle. The tool features a TiN (titanium nitride) coating to extend cutting life and reduce friction at the tool-workpiece interface. A web-thinned, tapered web design reduces thrust force during entry, which is critical at this diameter. The spiral flute geometry promotes chip evacuation in shallow micro-drilling operations. This bit is manufactured to DIN 1899 specification and is intended for use by machinists and tooling professionals working with precision drilling equipment.

This micro drill bit is suited for drilling operations in small-diameter, high-accuracy work across a range of ferrous and non-ferrous materials. It handles brass, cast iron, hardened materials, nickel alloys, stainless steel, steel, and titanium alloys. The straight-cylindrical shank with a 1.00 mm shank diameter fits standard collet chucks and micro-drill holders used on CNC machining centers, drill presses, and precision hand equipment. Series 660 designates this as part of a catalogued line of micro drills intended for production and toolroom environments where repeatable, small-hole accuracy is required.

Key Features

• 0.0232-inch drill diameter ground to DIN 1899 specification with a tolerance of +0.000 to -0.004 mm
• Cobalt construction provides heat resistance and edge retention in hard and abrasive workpiece materials
• TiN coating reduces friction and improves wear resistance at the cutting edge
• 118-degree faceted point with web thinning reduces entry thrust at micro-drill diameters
• Tapered web configuration and regular spiral flute support controlled chip evacuation
• Right-hand cut, straight-cylindrical shank for use in standard collet and chuck systems

Compatibility

Compatible with standard collet chucks and micro-drill holders accepting a 1.00 mm straight-cylindrical shank. Suitable for use in workpiece materials including brass, cast iron, hardened materials, nickel alloys, stainless steel, steel, and titanium alloys as specified by the manufacturer.

Installation Notes

Installation and use of micro drill bits at this diameter should be performed by qualified machinists or tooling personnel familiar with precision drilling equipment. Ensure the spindle and collet are clean and properly torqued before seating the shank to prevent runout at micro diameters. Power down and de-energize all equipment before changing tooling. Avoid side-loading or flexing the bit during operation, as cobalt micro drills are brittle at small diameters and susceptible to breakage under lateral force.