Guhring 9055240037000 Cobalt Stub Drill Bit 0.1457 in

Product Description

The GUHRING 9055240037000 is a cobalt (M35 grade) stub-length drill bit designed for fast, accurate hole-making in metalworking and light machining applications. Built to DIN 1897 standards, it features a 0.1457 inch (3.70 mm) diameter with a matching straight-cylindrical shank and a 118-degree four-facet split point that reduces walking and improves centering on entry. The web-thinned, tapered web construction lowers thrust requirements and extends tool life. With a total overall length of approximately 2.047 inches (52.00 mm) and a spiral flute length of approximately 0.787 inches (20.00 mm), this bit is suited for close-tolerance work in confined setups where a standard-length drill would be impractical.

This drill bit is intended for right-hand cutting in screw machine, CNC lathe, and benchtop drill press environments. Its primary workpiece material rating is aluminum, though the M35 cobalt construction also handles stainless steel, high-nickel alloys, and other work-hardening materials where HSS bits fall short. The bright, uncoated finish makes it easy to inspect for wear, and the 3xD flute-to-diameter ratio supports chip evacuation in short, interrupted cuts. Machinists, tool-and-die technicians, and maintenance professionals typically select this bit for production drilling of small-diameter through-holes.

Key Features

• M35 cobalt steel construction for heat and wear resistance in tough materials
• 118-degree four-facet split point reduces thrust and prevents bit walking on entry
• Web-thinned tapered web lowers feed force requirements
• DIN 1897 stub-length geometry for rigidity in tight setups
• Right-hand spiral flute with 3xD ratio for efficient chip clearance
• Bright, uncoated finish simplifies wear inspection

Compatibility

Designed as an OEM-style replacement or production drill for use in screw machine operations, CNC turning centers, and drill presses where a DIN 1897 stub-length cobalt bit in the 0.1000 to 0.1500 inch (3.50 to 5.00 mm) size range is specified.

Installation Notes

Installation is performed by machinists and toolroom technicians. Secure the straight-cylindrical shank fully in a collet, drill chuck, or quick-change toolholder rated for the spindle speed appropriate to the workpiece material and diameter. Ensure the spindle and workpiece are fully at rest before changing or inspecting the bit. Follow applicable ANSI B11 machine tool safety standards for guarding and RPM selection.