Guhring 9005150100000 Stub Drill Bit 0.3937 in Powdered Metal

Product Description

The GUHRING 9005150100000 is a stub-length screw machine drill bit designed for high-performance drilling in ferrous materials including cast iron and steel. Built from powdered metal (PMASP60 grade) with a coated finish, this bit delivers extended tool life and heat resistance in production drilling environments. The 130-degree point angle and web-thinned geometry reduce thrust force at entry, while the parabolic flute profile improves chip evacuation at depth. With a straight-cylindrical shank measuring 0.3937 inches in diameter, it seats securely in standard drill chucks and machine spindles. Machining professionals and tool-and-die shops rely on this Series 515 bit for precision stub-length applications where rigidity and hole accuracy are priorities.

This drill bit is suited for CNC machining centers, drill presses, and screw machines handling cast iron and steel workpieces. The stub length format provides increased rigidity compared to jobber-length bits, making it well-suited for shallow, high-precision holes where minimizing deflection is critical. The parabolic flute design supports efficient chip clearing in both through-hole and blind-hole operations. It conforms to DIN 1897 specification, placing it within standardized dimensional tolerances common in industrial and toolroom applications.

Key Features

• Powdered metal construction (PMASP60) with coated finish for extended wear resistance
• 130-degree drill point angle with web-thinned geometry reduces entry thrust
• Parabolic 2-flute design promotes efficient chip evacuation during drilling
• Straight-cylindrical shank for compatibility with standard chucks and collets
• Stub length format increases rigidity and reduces deflection in short-reach applications
• Conforms to DIN 1897 specification for dimensional consistency

Compatibility

Designed for use in CNC machining centers, screw machines, and drill presses. Primary workpiece materials are cast iron and steel. Fits standard chucks and collets accepting a 0.3937-inch straight-cylindrical shank. Conforms to DIN 1897 dimensional standards within the 0.3500 to 0.4000 inch diameter range.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with cutting tool setup and machine operation. Ensure the machine spindle is fully stopped and locked out before changing or seating the bit in the chuck or collet. Verify chuck runout is within acceptable limits before starting a production run, as excessive runout accelerates wear and degrades hole tolerance. Do not exceed the recommended maximum drilling depth of 1.1020 inches for this stub-length configuration.