Guhring 9006600001600 Micro Drill Bit Wire 96 Cobalt Tin

Product Description

The GUHRING 9006600001600 is a Series 660 micro drill bit designed for precision drilling in small-diameter applications. It carries a wire gauge size of 96, translating to a decimal diameter of 0.0063 inches, and features a cobalt substrate with a TiN (titanium nitride) coating for extended tool life in demanding materials. The 118-degree faceted point provides consistent entry geometry, while the web-thinned, tapered web configuration reduces thrust force at the tip. Overall length is 0.984 inches, with a straight-cylindrical shank measuring 1.00 mm in diameter. Right-hand spiral flutes handle chip evacuation in a standard cutting rotation. This bit is intended for use by machinists, toolroom technicians, and precision fabricators working in tight-tolerance environments.

The Series 660 micro drill is suited for drilling aluminum, titanium alloy, and other non-ferrous and light alloy workpiece materials classified under ISO material codes K, M, N, P, and S. Its 5xD flute-to-diameter ratio supports controlled chip removal in shallow micro-hole applications. Maximum drilling depth is 0.034 inches (0.86 mm), making it appropriate for thin-wall components, PCB-adjacent metalwork, and small precision assemblies where dimensional accuracy is critical. It conforms to DIN 1899 specification for short micro drills.

Key Features

• Wire size 96 — decimal diameter 0.0063 inches for true micro-drilling work
• Cobalt substrate with TiN coating for heat and wear resistance in hard and abrasive materials
• 118-degree faceted drill point for clean, consistent hole entry
• Web-thinned tapered web reduces axial thrust at the cutting tip
• Right-hand spiral flute, regular spiral type, for standard chip evacuation
• Conforms to DIN 1899 specification for short micro drill geometry

Compatibility

Designed for drilling aluminum (ISO K, N), steel (ISO P, M), and titanium alloy (ISO S) workpieces. Compatible with standard CNC machining centers, drill presses, and precision hand tools accepting a 1.00 mm straight-cylindrical shank.

Installation Notes

Micro drill bits at this diameter require a high-speed spindle with minimal runout — excessive runout will cause immediate bit breakage. Secure the shank fully in a collet or precision chuck rated for 1.00 mm shanks before starting the spindle. Reduce feed rate and use pecking cycles to manage chip buildup within the 0.034-inch maximum depth limit. Always power down or e-stop the machine before changing or inspecting the bit.