Guhring 9064120019000 Micro Drill Bit 0.0748 in Carbide

Product Description

The GUHRING 9064120019000 is a solid carbide micro drill bit engineered for precision drilling in demanding metalworking applications. Built to Series 6412 specifications, it features a 135-degree faceted point angle with web thinning for accurate entry and reduced thrust force. The TiAlN coating provides thermal resistance and extended tool life in high-speed cutting environments. At 0.0748 inches in diameter with a total length of 70 millimeters, this drill is designed for machinists and toolroom professionals working with tight-tolerance bores requiring consistent hole quality in ferrous and non-ferrous materials.

This micro drill bit is suited for CNC machining centers, drilling cells, and manual machine tools where small-diameter, high-precision bores are required. Primary workpiece materials include cast iron, stainless steel, and steel. It also performs in secondary applications involving aluminum and titanium alloys. The through-coolant design makes it effective in deep-hole micro drilling operations where chip evacuation and heat management are critical. It is a right-hand cut tool with a straight-cylindrical shank, compatible with standard collets and tool holders sized for a 4 millimeter shank.

Key Features

• Solid carbide submicron-grade construction for rigidity and wear resistance in hard materials
• TiAlN coating for high-heat resistance and extended tool life
• 135-degree faceted point with web thinning for self-centering entry and reduced thrust
• Through-coolant capability supports chip evacuation in depths up to 32.10 millimeters
• Straight-cylindrical shank with h7 diameter tolerance for precise tool holder fit
• 15xD flute-to-diameter ratio supports deep micro-drilling operations

Compatibility

Designed for use with standard collet-style tool holders accepting a 4 millimeter straight-cylindrical shank. Compatible with primary workpiece materials including cast iron, stainless steel, and steel, and secondary materials including aluminum and titanium alloy.

Installation Notes

This drill bit is intended for installation by machinists or toolroom technicians in CNC or manual machine tool setups. Ensure the machine spindle and tool holder are clean and free of debris before seating the shank. Through-coolant connections should be verified and coolant flow confirmed before starting the cut. Do not exceed the rated maximum drilling depth of 32.10 millimeters without retracting for chip clearing unless the machine cycle is programmed for pecking.