Guhring 9007300030000 Carbide Stub Drill Bit 0.1181 in

Product Description

The GUHRING 9007300030000 is a solid carbide screw machine length (stub) drill bit designed for precision drilling in production and maintenance applications. Built to DIN 6539 standards, this bit features a 118-degree faceted point angle, a web-thinned tip for reduced thrust, and a bright uncoated finish suited for use in a wide range of materials. The 3.00 mm (0.1181 inch) diameter and straight-cylindrical shank are ground to h8 tolerance for consistent fit in standard chucks and collets. With a 2-flute spiral configuration and a 3xD flute-to-diameter ratio, it delivers reliable chip evacuation in short-depth holes.

This drill bit is intended for general-purpose drilling with aluminum listed as the primary workpiece material, though its micrograin solid carbide construction also handles other non-ferrous and ferrous workpieces at appropriate feeds and speeds. The stub length format keeps the bit rigid and minimizes deflection, making it well suited for CNC machining centers, drill presses, and bench-top production drilling setups. Maximum drilling depth is 0.453 inches (11.50 mm). It is sold individually and is a direct Series 730 offering from GUHRING.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• 118-degree faceted point angle with web thinning for reduced entry thrust
• Stub length format minimizes deflection during short-depth drilling
• Bright uncoated finish compatible with cutting fluids and dry cutting
• Straight-cylindrical shank ground to h8 tolerance for accurate chuck seating
• Conforms to DIN 6539 specification for dimensional consistency

Compatibility

Designed as a general-purpose replacement or production drill bit for applications requiring a 3.00 mm straight-shank carbide stub drill conforming to DIN 6539; compatible with standard drill chucks and collets accepting a 3.00 mm shank diameter.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard chuck or collet tooling. Ensure the machine spindle is fully stopped and locked out before changing tooling. Solid carbide bits are brittle compared to high-speed steel; avoid side loading, interrupted cuts without appropriate parameters, or dropping the bit on hard surfaces. Always verify feed rate and spindle speed are appropriate for the workpiece material before drilling.