Guhring 9017020070000 Carbide Drill Bit 0.2756 in 140 Deg

Product Description

The GUHRING 9017020070000 is a screw machine length solid carbide drill bit engineered for high-performance drilling in demanding materials. Built to DIN 6539 standards and manufactured from DK460UF ultrafine carbide grade, this 7.00 mm (0.2756 inch) diameter bit features a TiN coating, a 140-degree split-point (SF) tip, and web-thinned geometry that reduces thrust and improves chip evacuation. With a 2-flute regular spiral design and tapered web configuration, it maintains accuracy and stability in short-hole drilling applications. Licensed machinists, tool-and-die professionals, and industrial maintenance technicians rely on this series for repeatable results in tight-tolerance work.

This drill bit is designed for screw machine length applications where a stubby, rigid tool is preferred over a jobber-length bit. Its primary rated workpiece material is stainless steel, making it a strong choice for austenitic and other hard-to-machine alloys. The 3xD flute-to-diameter ratio and 1.3386-inch flute length support drilling to a maximum depth of 0.9250 inches without coolant-through capability, keeping the setup simple for bench drill presses, CNC machining centers, and screw machine operations alike.

Key Features

• Solid carbide DK460UF ultrafine grain construction for rigidity and edge retention
• TiN coating reduces friction and extends tool life in stainless steel and similar alloys
• 140-degree SF split point minimizes walking and reduces entry burr
• Web-thinned, tapered web geometry lowers drilling thrust and improves chip flow
• Straight-cylindrical shank fits standard drill chucks and collet holders without adapters
• Manufactured to DIN 6539 specification for consistent dimensional accuracy

Compatibility

Designed as an OEM-style replacement or direct-fit tool for screw machine and CNC drilling operations requiring a 7.00 mm solid carbide drill bit with a straight-cylindrical shank per DIN 6539.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the machine powered down and locked out per applicable safety procedures. Secure the straight-cylindrical shank fully in a compatible collet or drill chuck before operation. Inspect the cutting edges and coating condition before each use; carbide is brittle and susceptible to chipping if dropped or improperly stored. Follow the machine manufacturer and tooling supplier recommended feeds and speeds for the workpiece material being drilled.