Guhring 9005150064000 Stub Length Drill Bit 0.252 in

Product Description

The GUHRING 9005150064000 is a stub-length (screw machine length) drill bit designed for precision drilling in cast iron and steel. Built from powdered metal (PMASP60 grade) with a coated finish, it delivers extended wear resistance in production and maintenance drilling applications. The 130-degree point angle and web-thinned, parallel-web construction reduce entry force and improve chip evacuation. With a parabolic flute profile and a 3xD flute-to-diameter ratio, this bit handles chip clearance efficiently in short-depth holes. It conforms to DIN 1897 standards and is suitable for use in CNC machines, drill presses, and manual screw-machine setups.

This drill bit is intended for right-hand cutting in cast iron and steel workpieces, covering a drill bit size range of 0.2500 to 0.3000 inches decimal. The stub-length body keeps the tool compact and rigid, making it well suited for high-production environments where minimizing deflection and maximizing repeatability are priorities. The straight-cylindrical shank fits standard drill chucks and collet holders without modification. It is sold individually and ships as a single unit per package.

Key Features

• 0.252-inch diameter with a tolerance of +0.000 to -0.022 mm for consistent hole sizing
• 130-degree split point angle with web thinning reduces thrust and improves self-centering
• Parabolic flute geometry promotes fast chip evacuation in deep-for-stub applications
• Powdered metal construction (PMASP60) provides hardness and heat resistance beyond standard HSS
• Coated finish extends tool life in ferrous metal drilling
• Conforms to DIN 1897 specification for stub-length drill bits
• Maximum drilling depth of 0.843 inches; overall length of 2.756 inches

Compatibility

Designed as a DIN 1897-conforming stub-length drill bit suitable for use in cast iron and steel applications across the 0.2500 to 0.3000 inch diameter range; fits any standard drill chuck or collet holder accepting a straight-cylindrical shank at this diameter.

Installation Notes

Installation and use of this drill bit should be performed by machinists or maintenance technicians familiar with rotating cutting tools and machine operation. Always ensure the machine spindle is fully stopped and power is locked out before changing tooling. Secure the straight-cylindrical shank fully in the chuck or collet to the recommended grip depth before operation. Do not exceed the rated maximum drilling depth of 0.843 inches per pass without retracting to clear chips.