Guhring 9003050056100 Cobalt Jobber Drill No 2 118 Deg

Product Description

The GUHRING 9003050056100 is a cobalt jobber-length drill bit sized to No. 2 wire gauge (0.2210 inch diameter), built for general-purpose drilling in steel and cast iron. It carries a 118-degree standard point angle with web thinning to reduce entry force and improve centering. The steam oxide coating provides a measure of lubricity and corrosion resistance during dry or minimal-lubrication drilling. Overall length is 3.66 inches with a flute length of 2.24 inches, giving a 5xD flute-to-diameter ratio typical of jobber-series tooling. Manufactured to DIN 338 standards, this bit suits machine shop, maintenance, and production environments where consistent hole quality in ferrous materials is required.

This drill bit is intended for drilling steel and cast iron in general-purpose machining applications. The straight cylindrical shank accepts standard drill chucks on benchtop drill presses, CNC machining centers, and handheld power tools. Right-hand cutting direction and a regular spiral flute design make it compatible with conventional clockwise-rotation spindles. Maximum recommended drilling depth is 1.91 inches (48.59 mm). Suitable for fabrication shops, maintenance technicians, and manufacturing operations requiring reliable performance in ferrous workpieces at this diameter range.

Key Features

• Cobalt high-speed steel construction for heat resistance in ferrous and hard materials
• 118-degree standard point angle with web thinning for reduced thrust and improved self-centering
• Steam oxide coating for added lubricity and light corrosion protection
• DIN 338 specification for consistent dimensional tolerances and interchangeability
• Regular spiral flute promotes efficient chip evacuation in through-hole and blind-hole applications
• Straight cylindrical shank fits standard three-jaw drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill for primary workpiece materials of steel and cast iron, conforming to DIN 338 standards. Compatible with any standard drill chuck accepting a 0.2209-inch straight shank across drill presses, lathes, and hand-held power tools.

Installation Notes

Install and remove this bit with the machine fully powered down and the spindle at a complete stop. Secure the straight shank firmly in a keyed or keyless chuck, verifying concentricity before beginning the cut. For steel and cast iron, use appropriate cutting fluid or cutting oil to manage heat buildup and extend tool life. Inspect the cutting edges for wear or chipping before each use; a dull cobalt bit generates excess heat that can work-harden the workpiece surface.