Guhring 9024630090900 Carbide Stub Drill Bit 0.358in

Product Description

The GUHRING 9024630090900 is a solid carbide stub-length (screw machine length) drill bit designed for precision drilling in production and machining environments. Built to DIN 6539 standards, it features a 118-degree faceted point, a web-thinned tip for reduced thrust and improved centering, and a straight-cylindrical shank for compatibility with standard drill chucks and collets. The two-flute regular spiral design promotes efficient chip evacuation. At 0.358 inches (letter size T) in diameter, this bit is suited for applications where a shorter flute length improves rigidity and reduces deflection. Licensed machinists and toolroom technicians are the primary installers.

This drill bit is optimized for drilling aluminum as its primary workpiece material, though its solid carbide K40-grade construction and general-purpose tool performance rating make it appropriate for a range of non-ferrous and softer ferrous materials in CNC machining centers, drill presses, and manual mill operations. The stub-length body limits overhang, increasing stiffness for tight-tolerance bore work. Maximum drilling depth is 1.038 inches per pass, making it well suited for through-holes and shallow blind bores in production fixtures and component fabrication.

Key Features

• Solid carbide K40-grade construction for hardness and wear resistance
• 118-degree faceted drill point with web thinning for reduced entry thrust and accurate starts
• Two-flute regular spiral with coated finish for improved chip flow and surface life
• Stub (screw machine) length body increases rigidity and reduces deflection in short-reach applications
• Straight-cylindrical shank fits standard chucks and ER collet holders
• Manufactured to DIN 6539 specification with a diameter tolerance of +0.000 to -0.010 mm

Compatibility

Designed as a DIN 6539 Series 2463 stub-length drill bit suitable for use in CNC machining centers, drill presses, and milling machines equipped with standard straight-shank toolholders or collet chucks accepting a 9.09 mm shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before loading or removing the bit from the chuck or collet. Verify the shank is fully seated and the holder is torqued per the toolholder manufacturer specification before beginning a cut. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not have a coolant-through design.