Guhring 9007300027000 Stub Drill Bit 2.7mm Solid Carbide

Product Description

The GUHRING 9007300027000 is a stub-length (screw machine length) drill bit designed for precision drilling in demanding shop and production environments. Built from micrograin solid carbide, this bit delivers rigidity and edge retention that high-speed steel cannot match at small diameters. It features a 118-degree faceted point, a web-thinned tip geometry for reduced thrust and cleaner entry, and a bright uncoated finish. The overall length is 46 millimeters with a 16-millimeter flute length and a maximum drilling depth of 11.95 millimeters. Machinists, tool-and-die technicians, and CNC operators install this type of tooling in production drilling applications where hole accuracy and repeatability are critical.

This drill bit is suited for general-purpose drilling with a primary focus on aluminum and similarly machinable non-ferrous materials. The short stub-length body provides added stiffness compared to jobber-length drills, making it well-suited for work in tight setups, rotary tool holders, or any application where deflection must be minimized. The straight-cylindrical shank at 2.70 millimeters diameter fits standard collet chucks and drill holders across conventional and CNC machine tools. It conforms to DIN 6539 specification under Series 730.

Key Features

• Micrograin solid carbide construction for superior hardness and edge retention at small diameters
• 118-degree faceted drill point with web thinning for reduced entry thrust and accurate hole positioning
• Stub length body (46 mm OAL) provides extra rigidity and minimizes deflection
• Bright uncoated finish compatible with a wide range of cutting fluids and coolant strategies
• Right-hand cut, 2-flute spiral design for efficient chip evacuation
• Diameter tolerance h8 for consistent fit in precision collet systems

Compatibility

Designed as a general-purpose stub-length carbide drill conforming to DIN 6539 Series 730, compatible with standard straight-bore collet chucks and drill holders accepting a 2.70 millimeter straight-cylindrical shank.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips before seating the shank. Verify collet bore size matches the 2.70 millimeter shank to prevent runout. When drilling aluminum or non-ferrous materials, use an appropriate cutting fluid and confirm spindle speed and feed rate are set per the tooling manufacturer recommendations for carbide at this diameter.