Guhring 9005490044500 Jobber Drill Bit 4.45mm Hss

Product Description

The GUHRING 9005490044500 is a jobber length drill bit designed for precise, high-performance drilling in metalworking and fabrication applications. Built from high speed steel with a bright, uncoated finish, it measures 4.45 mm (0.1752 inches) in diameter with a 130-degree drill point angle and a parabolic flute geometry that promotes efficient chip evacuation. The overall length is 3-5/32 inches (80.00 mm), and the straight-cylindrical shank seats cleanly in standard drill chucks. Right-hand cutting direction and web-thinned tip geometry reduce entry force and walking on the initial cut. This bit is suited for trade professionals, tool and die shops, and machining operations requiring consistent, repeatable results.

This drill bit is engineered primarily for use on aluminum and non-ferrous materials, as indicated by the primary workpiece material codes K, N, and P. It fits standard jobber length drilling applications in light manufacturing, maintenance, and precision machining environments. The parabolic flute design handles deeper cuts efficiently, with a maximum drilling depth of 1.5880 inches (40.33 mm). Conforming to DIN 338, this bit is appropriate for use in both manual and CNC drilling setups where consistent dimensional accuracy is required.

Key Features

• 4.45 mm (0.1752 inch) diameter with a diameter tolerance of -0.018 to 0.000 mm for tight-tolerance drilling
• 130-degree split point angle with web-thinned tip reduces thrust and improves hole entry accuracy
• Parabolic flute design with a 5xD flute-to-diameter ratio promotes chip clearing in deeper bores
• High speed steel construction rated as high performance grade for demanding production use
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• Conforms to DIN 338 specification for consistent interchangeability and quality standards

Compatibility

Designed as a DIN 338-compliant jobber length drill bit suited for aluminum, plastic, and light ferrous materials in standard drill chuck setups, per primary workpiece material codes K, N, and P as stated in the manufacturer specifications.

Installation Notes

Installation and use should be performed by qualified machinists or tool operators familiar with drill press, hand drill, or CNC spindle operation. Ensure the workpiece is securely clamped and the chuck or collet is properly tightened before operation. Power down and de-energize any machine before changing bits or adjusting tooling. Follow applicable shop safety standards and machine manufacturer guidelines when selecting feed rate and spindle speed for the target material.