Guhring 9006220029000 Cobalt Drill Bit 2.9 Mm

Product Description

The GUHRING 9006220029000 is a cobalt jobber length drill bit designed for high-performance metal drilling applications. It measures 2.9 mm (0.1142 inches) in diameter with an overall length of 2-13/32 inches and a flute length of 1-5/16 inches. Built to DIN 338 standards, this Series 622 bit features a 130-degree split point, a parabolic flute geometry, and a web-thinned, tapered web configuration. The bright uncoated cobalt construction provides heat resistance and edge retention in demanding drilling conditions. Maximum drilling depth reaches 1.128 inches (28.65 mm). This bit is installed by machinists, maintenance technicians, and metalworking tradespeople using standard drill presses, CNC machines, or handheld power drills.

This drill bit is suited for use in aluminum, non-ferrous metals, and a range of ferrous workpiece materials, consistent with its K, N, and P material codes per DIN classification. The parabolic flute design promotes efficient chip evacuation, making it well-suited for drilling softer and gummy materials like aluminum where chip packing is a common issue. The straight-cylindrical shank fits standard drill chucks without adapters. This is a single-piece unit sold individually, with a minimum order quantity of 10 pieces per order.

Key Features

• Cobalt construction rated for high-performance metalworking per DIN 338 specification
• 130-degree drill point angle for improved centering and reduced thrust force
• Parabolic flute geometry for efficient chip evacuation, especially in aluminum
• Web-thinned tapered web reduces axial load at drill entry
• Bright uncoated finish maintains sharp edge geometry without coating buildup
• Right-hand cut with straight-cylindrical shank for universal chuck compatibility
• Flute-to-diameter ratio of 5xD provides a balanced reach-to-rigidity profile

Compatibility

Designed as an OEM-style replacement or direct-use jobber length drill bit for standard drill chucks accepting a 0.1142-inch straight-cylindrical shank, suitable for drill presses, CNC drilling centers, and handheld power drills used in metalworking applications.

Installation Notes

Installation of this drill bit is performed by machinists or maintenance technicians with access to appropriate rotating equipment. Secure the shank fully into the drill chuck and verify runout before beginning operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed and feed rate selection based on workpiece material.