Guhring 9007300018000 Screw Machine Drill Bit 0.0709 in

Product Description

The GUHRING 9007300018000 is a stub-length solid carbide drill bit designed for precise, small-diameter drilling in production and machining environments. Part of the Guhring Series 730, it measures 1.80 mm (0.0709 inches) in diameter with a 118-degree faceted drill point and a two-flute regular spiral configuration. The straight-cylindrical shank and web-thinned geometry reduce entry resistance and improve chip evacuation. At an overall length of 36.00 mm with an 11.00 mm flute length, this bit is built for rigid setups where short, stiff tooling minimizes deflection. It carries a DIN 6539 designation and meets h8 diameter tolerance, making it suitable for tight-tolerance through-hole and blind-hole applications.

This drill bit is rated for general-purpose use with a primary workpiece material designation of aluminum, though its micrograin solid carbide construction makes it well suited for non-ferrous metals and other materials common in precision machining. The 3xD flute-to-diameter ratio and maximum drilling depth of 0.327 inches (8.30 mm) position it for screw machine, CNC, and bench drill press applications where consistent hole quality and tool life are priorities. It ships individually and is commonly used by machinists, tool-and-die technicians, and production shop operators.

Key Features

• Solid micrograin carbide construction for extended tool life in precision drilling
• 118-degree faceted drill point with web-thinned geometry reduces entry force
• Two-flute regular spiral design promotes efficient chip evacuation
• DIN 6539 standard compliance with h8 diameter tolerance for tight-tolerance holes
• Stub length (36.00 mm overall) provides rigidity and minimizes deflection
• Bright/uncoated finish suitable for aluminum and non-ferrous machining

Compatibility

Designed as an OEM-style replacement and general-purpose stub drill for screw machines, CNC machining centers, and bench drill presses requiring a 1.80 mm straight-shank carbide bit conforming to DIN 6539 specifications.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with small-diameter carbide tooling. Ensure the spindle, collet, or chuck is fully powered down and at a complete stop before changing tooling. Carbide drill bits are brittle and can fracture under side loading or excessive feed pressure — use appropriate feed rates and spindle speeds for the workpiece material. Inspect the cutting edges and shank for chips or damage before each use.