Guhring 9007320073700 Jobber Drill Bit Letter L Carbide

Product Description

The GUHRING 9007320073700 is a jobber length drill bit sized at Letter L (0.2902 inches) manufactured from solid carbide with a bright, uncoated finish. It features a 118-degree faceted point angle and a two-flute regular spiral configuration with web thinning to reduce thrust and improve chip evacuation. The overall length is 109 millimeters with a flute length of 69 millimeters, making it a compact, stiff tool suited for controlled-depth drilling in general-purpose applications. Licensed machinists, tool and die technicians, and maintenance mechanics are the typical users of this type of carbide jobber bit.

This bit is rated for primary use on aluminum and non-ferrous materials, corresponding to workpiece material code N under common tooling classification systems. The straight-cylindrical shank measures 7.37 millimeters in diameter with a shank length of 40 millimeters, fitting standard drill chucks and collet holders in both manual and CNC machine tools. The Series 732 designation places it within a general-purpose solid carbide jobber line conforming to DIN specification standards. Flute-to-diameter ratio is 5xD, and the diameter tolerance is held to h8 for consistent fit in tight-tolerance fixtures.

Key Features

• Solid carbide construction for rigidity and wear resistance in non-ferrous and general-purpose drilling
• 118-degree faceted point with web thinning for reduced entry force and improved centering
• Bright uncoated finish suitable for aluminum and other materials in the N material group
• Regular spiral two-flute geometry promotes efficient chip clearance in shorter-run holes
• Straight-cylindrical shank with h8 diameter tolerance for accurate chuck or collet retention
• DIN-conforming Series 732 design for dimensional consistency across tooling setups

Compatibility

Designed as an OEM-style general-purpose solid carbide jobber drill compatible with standard drill chucks and collet holders accepting a straight-cylindrical shank of approximately 0.2902 inches (7.37 millimeters) in diameter.

Installation Notes

Installation and use of solid carbide drill bits should be performed by qualified machinists or maintenance technicians familiar with machine tool operation. Ensure the spindle is fully stopped and the machine is locked out before inserting or removing the bit from the chuck or collet. Carbide is brittle compared to high-speed steel — avoid side loading, interrupted cuts without proper setup, or dropping the bit on hard surfaces. Verify runout and chuck condition before drilling to protect the tool and maintain hole accuracy.