Guhring 9005150052000 Stub Drill Bit 0.2047 in Powdered Metal

Product Description

The GUHRING 9005150052000 is a stub-length (screw machine length) twist drill bit designed for production drilling in cast iron and steel. Built from powdered metal (PM) with a coated finish, this Series 515 bit features a parabolic flute geometry and a web-thinned, parallel-web construction that reduces thrust and improves chip evacuation in short, high-cycle drilling applications. The 130-degree split point provides self-centering entry and reduces the need for a pilot hole. Overall length is 2.4409 inches with a flute length of 1.0236 inches and a maximum drilling depth of 0.7170 inches. The straight-cylindrical shank fits standard drill chucks.

This bit is suited for automated and manual drilling operations in ferrous materials, specifically cast iron and steel. Its stub-length body provides added rigidity compared to jobber-length bits, making it a strong choice for CNC drilling centers, drill presses, and screw machine setups where deflection control and hole accuracy are critical. The DIN 1897 specification ensures dimensional consistency expected in production environments. Diameter tolerance is held to +0.000 to -0.018 mm, making it suitable for close-tolerance through-hole work.

Key Features

• Powdered metal (PM) construction with coating for improved wear resistance in ferrous materials
• 130-degree standard point angle with web thinning for reduced entry thrust and self-centering behavior
• Parabolic flute profile promotes efficient chip evacuation in deep passes relative to stub length
• Parallel web configuration with 3xD flute-to-diameter ratio for consistent rigidity
• DIN 1897 compliant — consistent with production and toolroom dimensional standards
• Straight-cylindrical shank compatible with standard chucks and collet systems

Compatibility

Designed as a DIN 1897 stub-length drill bit for use in standard straight-shank drill chucks and collet holders across CNC machining centers, drill presses, and screw machine setups. Intended for drilling cast iron and steel workpieces per GUHRING Series 515 specifications.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before changing or seating the drill bit in the chuck or collet. Verify shank seating depth and chuck torque per the machine manufacturer guidelines before running. Coolant-through is not supported on this bit; use external coolant or cutting fluid appropriate for the workpiece material when required.