Guhring 9005150019900 Screw Machine Drill Bit 0.0785in

Product Description

The GUHRING 9005150019900 is a stub-length screw machine drill bit designed for high-productivity drilling in cast iron and steel. Part of the Series 515 lineup, it measures 0.0785 inches (Wire Size 47) in diameter with an overall length of 1.4961 inches and a flute length of 0.4724 inches. The bit is manufactured from powdered metal and features a parabolic fast-spiral flute geometry with web thinning, which promotes efficient chip evacuation and reduces thrust in short-hole applications. The 130-degree point angle and cone relief point type suit it to harder ferrous workpiece materials commonly encountered in production machining and maintenance repair operations.

This drill bit is intended for use in screw machine operations, CNC drilling centers, and handheld or bench drill press applications where a compact stub-length tool is required. Its straight-cylindrical shank seats directly in standard drill chucks and collets without modification. The right-hand cut, parabolic flute design makes it well suited for production runs in cast iron and steel components, including structural fabrication and mechanical assembly work. It ships individually and carries a minimum order quantity of 10 units, making it appropriate for shop stocking in production environments.

Key Features

• Powdered metal construction provides elevated hardness and wear resistance compared to standard high-speed steel
• Parabolic fast-spiral flute promotes rapid chip removal and reduced heat buildup in ferrous materials
• Web-thinned point reduces axial thrust and improves centering at drill entry
• 130-degree included point angle optimized for cast iron and steel workpieces
• Stub flute length (0.4724 inches) and compact overall length (1.4961 inches) add rigidity and minimize deflection
• Straight-cylindrical shank is compatible with standard chucks and collets
• Conforms to DIN 1897 standard with h8 diameter tolerance for consistent fitment

Compatibility

Designed as a DIN 1897 stub-length screw machine drill bit suitable for use in standard drill chucks, collets, and screw machine spindles accepting a straight-cylindrical shank in the 0.0785-inch diameter range.

Installation Notes

Installation and use should be performed by a machinist or qualified trade professional familiar with rotating cutting tools. Secure the shank fully in the chuck or collet and verify concentricity before operation. Always power down and lock out the machine before changing or inspecting the bit. Do not exceed the maximum recommended drilling depth of 0.3550 inches per pass without retracting to clear chips.