Guhring 9005150040900 Drill Bit 0.161 in 130 Deg Pm

Product Description

The GUHRING 9005150040900 is a screw machine length (stub) drill bit designed for fast, accurate drilling in cast iron and steel. It measures 0.161 inches in diameter, equivalent to a No. 20 wire gauge size, with an overall length of 2.165 inches and a flute length of 0.866 inches. The 130-degree split point with cone relief geometry promotes self-centering and reduces walking on entry. Constructed from powdered metal with a coated finish, the bit delivers extended wear resistance in ferrous materials. It features a parabolic, fast-spiral flute design with web thinning to improve chip evacuation and reduce thrust. A straight-cylindrical shank provides secure seating in standard drill chucks and quick-change holders.

This bit is suited for production machining, metalworking shops, and maintenance environments where stub-length rigidity is preferred over jobber-length reach. The 3xD flute-to-diameter ratio and maximum recommended drilling depth of 0.625 inches make it appropriate for shallow, high-cycle drilling operations in cast iron and steel workpieces. It is packaged individually and sold as a single unit, making it a practical replacement or addition to a working set of screw machine bits.

Key Features

• Parabolic fast-spiral flute with web thinning for efficient chip removal and reduced thrust
• 130-degree cone relief point promotes self-centering entry without a center punch
• Powdered metal construction with coated finish for extended tool life in ferrous materials
• Stub length body increases rigidity and minimizes deflection in close-tolerance drilling
• Straight-cylindrical shank fits standard 3-jaw chucks and quick-change toolholders
• Manufactured to DIN 1897 standard with h8 diameter tolerance

Compatibility

Designed as a DIN 1897 Series 515 screw machine length drill bit for use in cast iron and steel workpieces. Compatible with standard drill chucks and quick-change systems accepting straight-cylindrical shanks in the 0.161-inch diameter range.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard drill presses, CNC machining centers, or hand-held power drills with appropriate chuck capacity. Ensure the machine is fully stopped and de-energized before loading or changing the bit. Secure the shank fully in the chuck and verify runout before beginning a drilling cycle. Follow shop safety protocols and applicable OSHA machine guarding requirements when operating drilling equipment.