Guhring 9005520024000 Stub Drill Bit 0.0945 in Hss

Product Description

The GUHRING 9005520024000 is a stub-length (screw machine length) high speed steel drill bit designed for precision drilling in aluminum and other non-ferrous materials. Built to DIN 1897 standards, it features a 2-flute parabolic geometry with web thinning that promotes aggressive chip evacuation and reduces thrust in short-hole applications. The 130-degree split point provides self-centering entry without a pilot hole, and the bright uncoated finish suits applications where coatings are unnecessary or undesirable. This bit is intended for use by machinists, tool-and-die technicians, and production drilling setups where repeatability and hole quality in softer materials are the primary requirements.

This drill bit is well suited for short-hole production drilling in aluminum, brass, and similar non-ferrous workpieces on CNC machining centers, drill presses, and manual machines. The stub-length body provides added rigidity compared to jobber-length bits, reducing deflection in close-tolerance work. The 3xD flute-to-diameter ratio and maximum drilling depth of 0.409 inches make it appropriate for shallow through-holes and blind holes in sheet stock, fixtures, and machined components.

Key Features

• 0.0945 inch (2.40 mm) diameter with a tolerance of +0.000 to -0.014 mm for consistent hole sizing
• Parabolic 2-flute geometry with web thinning promotes efficient chip evacuation in aluminum
• 130-degree standard point angle with self-centering entry reduces workpiece walking
• Stub-length body (overall length 1.693 inches) provides rigidity and reduced deflection
• Straight-cylindrical shank fits standard drill chucks and collet holders without modification
• Manufactured to DIN 1897 specification for dimensional consistency across production batches

Compatibility

Designed as a DIN 1897 Series 552 stub-length drill bit for use in standard drill chucks and collet systems accepting a straight-cylindrical shank. Primary workpiece material designation is aluminum; suitable for other non-ferrous materials with compatible feeds and speeds.

Installation Notes

Installation is performed by machinists or trained machine operators. Secure the shank fully in the chuck or collet to the recommended grip depth before tightening to prevent runout. Ensure the machine spindle is at a complete stop before changing bits. Follow established feeds-and-speeds guidelines for the workpiece material and machine type; consult the DIN 1897 standard and the machine manufacturer specifications for setup parameters.