Guhring 9006600012500 Micro Drill Bit 0.0492 in Cobalt

Product Description

The GUHRING 9006600012500 is a cobalt micro drill bit designed for precision drilling in tight-tolerance applications. Built to DIN 1899 specification, this bit features a 118-degree faceted point angle and a TiN (titanium nitride) coating over a cobalt substrate, giving it strong wear resistance in demanding materials. The overall length is 0.984 inches with a straight-cylindrical shank diameter of 1.50 mm and a spiral flute configuration rated at a 5xD flute-to-diameter ratio. Web thinning and a tapered web configuration reduce thrust force at entry, which is critical when working at this scale. Licensed machinists, tool-and-die technicians, and precision fabricators are the primary users.

This micro drill bit is suited for small-hole drilling in aluminum, titanium alloy, and similar materials where dimensional accuracy is non-negotiable. The 0.0492-inch diameter and 0.261-inch maximum drilling depth make it appropriate for PCB work, mold making, instrument components, and fine-tolerance fixture drilling. Right-hand cut spiral flutes clear chips efficiently at micro-scale. The bit ships individually and carries a minimum order quantity of 10 units per order.

Key Features

• Cobalt construction with TiN coating for extended tool life in abrasive and hard materials
• 118-degree faceted point with web thinning reduces entry thrust and walking
• Tapered web configuration supports rigidity at 0.0492-inch diameter
• DIN 1899 specification ensures dimensional consistency across the series
• Right-hand cut, regular spiral flutes for reliable chip evacuation
• Straight-cylindrical shank fits standard collet and chuck systems

Compatibility

Designed as an OEM-compatible replacement or production-run micro drill for use in standard straight-shank collet chucks and precision drill press setups rated for sub-1.5 mm shank tooling. Primary workpiece material codes K, M, N, and P cover aluminum and similar non-ferrous and cast materials; secondary material code S covers titanium alloy.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician using a properly sized collet or chuck rated for 1.50 mm straight-cylindrical shanks. Confirm runout on the spindle before seating the bit, as micro-diameter tooling is highly sensitive to concentricity errors. Do not exceed the maximum drilling depth of 0.261 inches in a single pass without peck-drilling to clear chips. Coolant-through is not supported on this bit; use external mist or flood coolant appropriate to the workpiece material.