Guhring 9005490021800 No. 44 Hss Jobber Drill Bit

Product Description

The GUHRING 9005490021800 is a high-speed steel (HSS) jobber-length drill bit sized to wire gauge No. 44 (0.0860 inch diameter). It features a 130-degree split-point geometry with a web-thinned, tapered web configuration that reduces thrust and improves centering on entry. The parabolic flute design promotes efficient chip evacuation in deeper holes. Built to DIN 338 specification, this is a heavy-duty grade bit suited for production drilling in metalworking environments. It is installed by machinists, tool-and-die technicians, and maintenance mechanics working in shop or field settings.

This drill bit is rated for use in steel, cast iron, and aluminum along with other non-ferrous materials, covering primary workpiece material codes K, N, and P. The parabolic flute geometry and web-thinned point make it well-suited for applications requiring clean entry and consistent hole quality at small diameters. It carries a 5xD flute-to-diameter ratio and a maximum drilling depth of 0.9340 inch (23.73 mm), making it appropriate for through-hole and shallow blind-hole work in ferrous and non-ferrous stock.

Key Features

• Wire gauge No. 44 diameter — 0.0860 inch — for precision small-diameter drilling
• 130-degree point angle with web-thinned, tapered web for reduced entry thrust
• Parabolic flute profile promotes chip clearing and reduces heat buildup
• High-speed steel construction — no coating, bright finish
• Conforms to DIN 338 standard, Series 549 heavy-duty grade
• Right-hand cutting, straight cylindrical shank for standard chuck compatibility

Compatibility

Designed as an OEM-style DIN 338 jobber drill for use in steel, cast iron, aluminum, and non-ferrous materials (workpiece material codes K, N, and P) in standard three-jaw drill chucks accepting a 0.0858-inch straight shank.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard keyed or keyless drill chuck on a drill press, CNC machining center, or hand drill. Ensure the machine is fully powered down and the spindle is locked before changing bits. Secure the workpiece firmly before drilling to prevent walk at small diameters. Cutting fluid or light oil is recommended when drilling ferrous materials to extend tool life.