Guhring 9064880016000 Micro Drill Bit 1.60 Mm Carbide

Product Description

The GUHRING 9064880016000 is a solid carbide micro drill bit engineered for very small hole drilling in demanding materials. Built to Series 6488 specifications, it features a 140-degree faceted point and a Perrox coating that extends tool life in high-wear applications. The web-thinned geometry reduces thrust force at entry, which is critical when working in tight-tolerance bores. With a straight-cylindrical shank and a drill bit diameter tolerance of m7, this bit seats securely in standard collet chucks and precision tool holders. Machinists and toolroom technicians working with difficult-to-machine alloys will find this bit suited to production and precision drilling environments.

This micro drill bit is designed for very small hole drilling in stainless steel, superalloys, and titanium — workpiece material codes M and S. The 1.60 mm cutting diameter and 3xD flute-by-diameter ratio make it appropriate for shallow, high-precision bores in aerospace, medical device, and industrial manufacturing applications. The coolant-through design supports internal coolant delivery, helping to evacuate chips and manage heat in deep or interrupted cuts. It is sold individually and is intended for CNC machining centers, drill presses, and precision bench equipment where micro-diameter tooling is required.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard, abrasive workpiece materials
• Perrox coating reduces friction and extends tool life in stainless steel, superalloys, and titanium
• 140-degree faceted point with web thinning lowers entry thrust and improves centering accuracy
• Coolant-through capability supports internal coolant or air blast for chip evacuation and heat control
• Straight-cylindrical shank with 4.00 mm shank diameter fits standard precision collet systems
• m7 diameter tolerance ensures consistent, repeatable hole sizing in close-tolerance work

Compatibility

Designed as an OEM-specification Series 6488 micro drill bit for use in precision CNC machining and drilling equipment that accepts a 4.00 mm straight-cylindrical shank.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or toolroom technician with the machine powered down and locked out per facility LOTO procedures. Seat the straight shank fully into the collet or chuck and verify runout before starting a cut. Micro-diameter carbide tooling is brittle — avoid side-loading, interrupted feeds, or hand-feeding without a properly set feed rate. Follow the machine tool manufacturer and cutting tool recommendations for spindle speed and feed rate when drilling stainless steel, superalloys, or titanium.