Guhring 9064120018000 Micro Drill Bit 0.0709 in Carbide

Product Description

The GUHRING 9064120018000 is a solid carbide micro drill bit engineered for precision drilling in demanding industrial and machining applications. Built from submicron-grade carbide and coated with TiAlN for heat and wear resistance, this bit delivers consistent performance in tight-tolerance work. It features a 135-degree faceted point with web thinning for reduced entry force and improved centering accuracy. The through-coolant design channels cutting fluid directly to the tip, extending tool life and controlling chip evacuation in deep-hole operations. At 0.0709 inches in diameter with an h7 shank tolerance, this bit is sized for precision tool holders and high-speed spindles used by machinists and tooling professionals.

This micro drill bit is designed for use in CNC machining centers, drill presses, and multi-axis machines where tight tolerances and small-diameter holes are required. Primary workpiece materials include cast iron, stainless steel, and steel. Secondary materials include aluminum and titanium alloy. With a flute-by-diameter ratio of 15xD, it handles drilling depths up to 30.2 mm, making it suitable for deep, small-diameter through-holes in production and job-shop environments. Its right-hand cut and straight-cylindrical shank make it compatible with standard collet chucks and precision tool holders.

Key Features

• Submicron-grade solid carbide construction for superior hardness and thermal stability
• TiAlN coating extends tool life in high-temperature cutting conditions
• 135-degree faceted point with web thinning reduces thrust force and improves hole entry accuracy
• Through-coolant capability delivers fluid directly to the cutting edge for chip control and heat management
• h7 shank diameter tolerance ensures precise fit in collet-style and hydraulic tool holders
• 15xD flute-to-diameter ratio supports deep-hole drilling up to 30.2 mm maximum depth

Compatibility

Rated for primary workpiece materials including cast iron, stainless steel, and steel (ISO material codes K, M, P) and secondary materials including aluminum and titanium alloy (ISO codes N, S). Straight-cylindrical shank at 4 mm diameter fits standard collet chucks and precision tool holders accepting that shank size.

Installation Notes

Installation and use of this tool should be performed by a qualified machinist or tooling technician. Before mounting, confirm the spindle and tool holder are fully de-energized and at rest. Verify collet or chuck clamping torque meets the tool holder manufacturer specifications. Ensure the through-coolant circuit is properly connected and pressurized before beginning a drilling cycle to prevent premature tool wear.