Guhring 9006680065300 Taper Length Drill Bit 0.2570 in

Product Description

The GUHRING 9006680065300 is a taper length twist drill bit designed for precision hole-making in metal fabrication and machining applications. Built to DIN 340 standards, it carries a 0.2570-inch (Letter F) diameter with a 130-degree split point angle and a parabolic flute geometry that promotes efficient chip evacuation. The high-speed steel construction is coated for improved wear resistance and tool life. Overall length is 5-13/16 inches, with a flute length of 3-13/16 inches and a 10xD flute-to-diameter ratio. The cylindrical shank measures 6.53 mm in diameter. This is a right-hand cut bit intended for use by machinists, tool-room technicians, and maintenance professionals running manual or CNC drilling operations.

The 9006680065300 is suited for through-hole and deep-hole drilling in aluminum alloy, brass, and steel. Its web-thinned, parallel web configuration reduces thrust requirements and improves centering at entry. The maximum drilling depth is 3.4330 inches (87.21 mm), making it appropriate for applications requiring extended reach beyond what a jobber-length bit provides. Series 668 is GUHRING's high-performance HSS taper length line, conforming to DIN 340 geometry specifications. Typical use cases include production drilling, maintenance repair, and prototype work where a standard-length bit cannot reach the required depth.

Key Features

• DIN 340 taper length geometry with 5-13/16 inch overall length for extended reach
• Parabolic flute design promotes rapid chip evacuation in deep-hole drilling
• Web-thinned parallel web reduces entry thrust and improves point stability
• High-speed steel construction with coating for extended tool life
• 130-degree standard point angle compatible with common drill press and CNC setups
• Right-hand cut, cylindrical shank fits standard drill chucks and collets

Compatibility

Rated for use in aluminum alloy, brass, and steel. Fits standard drill chucks and collet systems accepting a 6.53 mm cylindrical shank. Conforms to DIN 340 dimensional standards.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with drill press, lathe, or CNC drilling operations. Secure the cylindrical shank firmly in a properly sized chuck or collet before operation. Ensure the workpiece is clamped securely to prevent movement during drilling. Follow shop safety protocols and applicable OSHA machine guarding requirements when operating rotating tooling.