Guhring 9024640029000 Jobber Drill Bit 2.9mm Carbide

Product Description

The GUHRING 9024640029000 is a jobber-length drill bit designed for precision drilling in non-ferrous and light alloy materials. Built from solid carbide grade K40 and finished with a FIREX coating, this bit delivers consistent performance in demanding production environments. It features a 118-degree faceted point angle with web thinning for improved centering and reduced thrust on entry. The 2-flute spiral design with a regular helix promotes efficient chip evacuation. With an overall length of 2.4 inches and a flute length of 1.3 inches, it fits standard drill chucks and CNC toolholders. Machinists and toolroom technicians working with aluminum and similar non-ferrous stock are the primary users.

This bit is rated for general-purpose drilling in aluminum and other non-ferrous materials classified under material group N. It carries a 5xD flute-to-diameter ratio, making it well suited for moderate-depth holes without chip packing. The straight-cylindrical shank fits collets and drill chucks sized for a 2.9 mm shank diameter. Typical applications include light manufacturing, aerospace component work, and precision fabrication where tight hole tolerances and clean entry are required. Maximum drilling depth is 1.128 inches (28.65 mm), keeping this bit appropriate for through-holes and blind holes in thin-to-medium stock.

Key Features

• Solid carbide K40 grade construction for rigidity and wear resistance in non-ferrous machining
• FIREX coating reduces friction and extends tool life in aluminum and light alloy applications
• 118-degree faceted point with web thinning improves self-centering and lowers feed force
• 2-flute regular spiral flute design promotes chip clearance and smooth cutting action
• Straight-cylindrical shank compatible with standard collets and drill chucks
• Manufactured to DIN specification for dimensional consistency and interchangeability

Compatibility

Designed as a general-purpose jobber-length drill bit in the GUHRING Series 2464, sized for 2.9 mm straight-cylindrical shank toolholders and compatible with CNC machining centers, drill presses, and hand-held drilling equipment accepting this shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with rotating cutting tools. Ensure the spindle is fully stopped and the machine is in a safe, de-energized state before loading or removing the bit from the toolholder. Verify collet or chuck runout is within acceptable limits before cutting, as excessive runout will accelerate wear on a carbide tool. Do not exceed the maximum drilling depth of 1.128 inches per the manufacturer specification.