Guhring 9012420031000 Screw Machine Drill Bit 3.1mm

Product Description

The GUHRING 9012420031000 is a solid carbide screw machine length drill bit designed for high-performance drilling in cast iron and steel. It measures 3.1 mm (0.1220 inches) in diameter with an overall length of 49 mm (1.929 inches) and a 140-degree split point for accurate self-centering entry. The submicron carbide grade and web-thinned, parallel-web construction reduce thrust and improve chip evacuation. This bit runs right-hand cut with a straight-cylindrical shank and is built to DIN 6539 standards. It is a tool for machinists and tool-and-die professionals working with tight tolerances in metal fabrication environments.

The 9012420031000 fits screw machine length applications where a compact, rigid drill is required for close-tolerance through-holes and blind holes in ferrous materials. The 3xD flute-to-diameter ratio and 18 mm flute length make it well suited for shallow to moderate depth holes in cast iron and steel workpieces. Maximum drilling depth is 13.35 mm (0.526 inches). The straight-cylindrical shank seats directly in standard drill chucks and collet holders used on CNC machining centers, drill presses, and screw machines.

Key Features

• Solid carbide submicron grade construction for rigidity and wear resistance in ferrous materials
• 140-degree SU split point for accurate positioning and reduced walking on entry
• Web-thinned parallel web design lowers thrust and improves chip flow
• Coated finish for extended tool life in cast iron and steel
• Conforms to DIN 6539 specification for consistent dimensional accuracy
• Right-hand cut, 2-flute spiral configuration with straight-cylindrical shank

Compatibility

Designed as a screw machine length carbide drill for use in cast iron and steel workpieces; compatible with standard drill chucks and collet holders accepting a 0.1220-inch straight-cylindrical shank.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with cutting tool setup on CNC or manual drilling equipment. Ensure the spindle and workholding are fully secured before initiating the cut. Do not exceed the maximum drilling depth of 13.35 mm per pass without confirming chip clearance. Follow machine manufacturer guidelines for spindle speed and feed rate when working with solid carbide tooling in ferrous materials.