Guhring 9024630085000 Solid Carbide Drill Bit 0.3346 in

Product Description

The GUHRING 9024630085000 is a screw machine length (stub length) drill bit engineered for precision drilling in metalworking and machining applications. Built from solid carbide to DIN 6539 standards, it delivers consistent hole quality in aluminum and other materials where tool rigidity and edge retention are critical. The bit measures 0.3346 inches (8.50 mm) in diameter with a 118-degree faceted drill point angle. Overall length is 3.11 inches (79.00 mm), and the flute length is 1.457 inches (37.00 mm). A web-thinned design reduces entry force and improves chip evacuation. This bit is handled by machinists and tool-and-die professionals using CNC machining centers, drill presses, and manual milling setups.

This stub-length carbide drill bit is suited for general-purpose drilling in short-reach setups where a screw machine length provides greater rigidity than a jobber-length bit. The straight-cylindrical shank seats directly into standard drill chucks and collet holders with an 8.50 mm shank diameter. Its 3xD flute-to-diameter ratio and maximum drilling depth of 0.955 inches (24.25 mm) make it appropriate for through-holes and blind bores in aluminum and comparable non-ferrous or light alloy workpieces in both production and job-shop environments.

Key Features

• Solid carbide construction for superior hardness and edge retention versus high-speed steel
• 118-degree faceted point angle with web thinning for reduced thrust and clean entry
• Regular spiral, 2-flute configuration promotes efficient chip evacuation
• Coated finish extends tool life in abrasive and high-cycle cutting conditions
• Straight-cylindrical shank fits standard collets and drill chucks accepting 8.50 mm shanks
• Conforms to DIN 6539 specification for consistent dimensional tolerances

Compatibility

Designed as an OEM-style screw machine length stub drill bit compatible with standard drill chucks, ER collet systems, and toolholders accepting an 8.50 mm straight-cylindrical shank. Primary workpiece material rating is aluminum; suitable for general-purpose machining within the 8.00 mm to 9.50 mm drill bit size range per DIN specification.

Installation Notes

Installation is performed by machinists or toolroom technicians. De-energize and lock out the machine spindle before inserting or removing the bit from the toolholder. Ensure the collet or chuck bore is clean and free of chips before seating the shank to maintain concentricity. Do not exceed the recommended maximum drilling depth of 0.955 inches without a pecking cycle to manage chip load and heat buildup.