Guhring 9038990020000 Micro Drill Bit 2mm Carbide Tialn

Product Description

The GUHRING 9038990020000 is a solid carbide micro drill bit engineered for precision drilling in demanding industrial and machining applications. Built to Series 3899 standards, it features a 140-degree faceted point with web thinning for accurate entry and reduced thrust force. The TiAlN coating improves wear resistance and thermal performance at elevated cutting speeds. At 2 mm in diameter with a 38 mm overall length, this bit is suited for small-diameter hole work where dimensional accuracy and tool life are critical. Licensed machinists, tool-and-die technicians, and CNC operators are the primary users.

This micro drill bit is designed for use in ferrous materials, specifically cast iron and steel (material grades K and P). The spiral flute and straight-cylindrical shank with h7 diameter tolerance make it compatible with standard precision collet chucks and tool holders used on CNC machining centers, drill presses, and similar equipment. The 5xD flute-to-diameter ratio supports chip evacuation in holes up to 9 mm deep. Coolant-through capability is not included, so external or flood coolant is recommended for deeper cuts.

Key Features

• Solid carbide construction with TiAlN coating for extended tool life in ferrous materials
• 140-degree faceted point for precise hole entry and reduced walking
• Web-thinned geometry reduces axial cutting force and improves chip flow
• Straight-cylindrical shank with h7 tolerance for accurate collet and chuck fitment
• Spiral flute design supports chip evacuation in holes up to 9 mm deep
• Right-hand cut, regular spiral suitable for standard CNC and manual drilling setups

Compatibility

Designed for drilling cast iron and steel workpieces. Compatible with precision collet systems and tool holders accepting a 3 mm straight-cylindrical shank. Intended for use in GUHRING Series 3899 applications.

Installation Notes

This bit is installed by qualified machinists or CNC setup technicians using a compatible collet chuck or drill holder. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify runout of the tool holder before operation, as excessive runout will accelerate wear on a bit of this diameter. External or flood coolant is recommended since coolant-through is not supported.