Guhring 9055200015000 Cobalt Stub Drill Bit 0.0591 in

Product Description

The GUHRING 9055200015000 is a cobalt screw machine length (stub) drill bit designed for high-speed drilling in demanding shop and production environments. The bit measures 1.50 mm (0.0591 inches) in diameter with a 32.00 mm (1.26 inches) overall length and a 9.00 mm (0.35 inches) flute length. It features a 118-degree four-facet split point and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The cobalt construction provides heat resistance suitable for harder work materials. This bit is sold individually (Package Qty 1) and is subject to a minimum order quantity of 10 units.

This drill bit is suited for screw machine and production drilling applications where a short, rigid stub-length bit is required. Its primary workpiece material rating is aluminum, and the right-hand spiral flute geometry handles general-purpose through-hole and blind-hole work. The straight-cylindrical shank seats directly in standard drill chucks and screw machine collets. Shops running high-volume small-diameter drilling operations will find the Series 5520 geometry consistent with DIN 1897 dimensional standards.

Key Features

• Cobalt tool material for improved heat and wear resistance versus standard high-speed steel
• 118-degree four-facet split point with web thinning reduces thrust and improves centering
• Stub (screw machine) length body provides added rigidity in short-reach drilling setups
• Right-hand cut with regular spiral flutes for efficient chip removal in aluminum and similar materials
• Straight-cylindrical shank fits standard drill chucks and screw machine collets without adapters
• Manufactured to DIN 1897 specification for consistent dimensional tolerances

Compatibility

Designed as a DIN 1897-compliant stub-length drill bit for use in drill presses, screw machines, CNC machining centers, and hand-held drilling equipment accepting a 1.50 mm straight-cylindrical shank. Primary workpiece material rating is aluminum.

Installation Notes

Installation is performed by machinists and tool-and-die or maintenance technicians. Ensure the machine spindle is fully de-energized and locked out before changing tooling. Seat the straight-cylindrical shank fully into the chuck or collet and tighten to the machine manufacturer's specified clamping procedure before engaging the spindle. Inspect the cutting edges and point geometry before use; discard any bit showing chipping, cracks, or visible deformation.