Guhring 9006600007800 Micro Drill Bit 0.0307in Cobalt Tin

Product Description

The GUHRING 9006600007800 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. Built to DIN 1899 specification, it features a 118-degree faceted point with web thinning for reduced thrust and cleaner entry at tight tolerances. The TiN coating extends tool life by increasing surface hardness and reducing friction. At 0.0307 inches in diameter with a straight-cylindrical shank and spiral flute geometry, this bit handles demanding small-hole work where dimensional accuracy is critical. It is suited for machinists, tool and die technicians, and production drilling operations requiring repeatable precision at micro scales.

This drill bit is built for use in CNC machining centers, drill presses, and precision hand drilling fixtures. Its primary workpiece material designation is aluminum and non-ferrous metals, with secondary capability in titanium alloys and other difficult-to-machine materials. The 5xD flute-to-diameter ratio and tapered web configuration support chip evacuation in shallow to moderate depth holes. The Series 660 design is a catalog-standard micro drill offering consistent geometry across production runs.

Key Features

• 0.0307-inch diameter cobalt construction for strength and heat resistance
• TiN coating for extended wear life and reduced cutting friction
• 118-degree faceted point with web thinning for accurate entry and reduced thrust
• Spiral flute with tapered web configuration aids chip evacuation
• Straight-cylindrical shank compatible with standard micro drill chucks and collets
• DIN 1899 specification ensures consistent geometry and interchangeability
• Right-hand cut, 5xD flute ratio suitable for aluminum, non-ferrous metals, and titanium alloys

Compatibility

Designed as a DIN 1899 Series 660 micro drill bit for use in CNC machining centers, drill presses, and precision drilling fixtures where a 0.0307-inch straight-cylindrical shank micro drill is required. Primary compatibility is with aluminum and non-ferrous workpiece materials; secondary rated for titanium alloys.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with micro drill handling. Secure the shank fully in a precision collet or micro drill chuck before operation and verify runout before engaging the workpiece. At this diameter, excessive feed rate or lateral force will cause bit breakage. Power down and lock out the machine before changing tooling.