Guhring 9003050022600 Cobalt Drill Bit No. 43 0.089 in

Product Description

The GUHRING 9003050022600 is a cobalt jobber-length drill bit sized to wire gauge No. 43, equivalent to 0.0890 inches in diameter. Built to DIN 338 standards, it features a 118-degree standard point angle with web thinning for reduced thrust at entry. The straight-cylindrical shank and regular spiral flute geometry support accurate hole placement in general-purpose drilling applications. Overall length is 53 millimeters, with a flute length of 27 millimeters. The bright, uncoated finish is standard for cobalt-grade tooling intended for ferrous and hard materials. Licensed machinists, tool-and-die workers, and maintenance technicians are the primary users.

This drill bit is designed for drilling cast iron and steel workpieces in general-purpose shop and field applications. The 2-flute spiral design provides efficient chip evacuation in through-hole and blind-hole drilling at depths up to 0.930 inches. The DIN 338 specification and 5xD flute-to-diameter ratio make it suitable for standard drill press, CNC, and hand-drill operations where tight diameter tolerances are required. Coolant-through capability is not supported by this bit.

Key Features

• Cobalt construction provides heat resistance for drilling cast iron and steel
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• DIN 338 specification ensures consistent dimensional and performance standards
• Straight-cylindrical shank fits standard drill chucks without modification
• Right-hand cut, regular spiral flute for reliable chip evacuation
• Diameter tolerance of -0.014 to 0.000 mm for precise hole sizing

Compatibility

Designed as a general-purpose OEM-style replacement or direct-use drill bit compatible with standard drill chucks accepting a 0.0890-inch straight-cylindrical shank, suitable for drill press, CNC, and portable hand-drill setups targeting cast iron and steel workpieces.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotary cutting tools. Secure the shank fully in the chuck and verify runout before drilling. Always wear appropriate eye protection and secure the workpiece before operation. Follow applicable shop safety standards and manufacturer speed-and-feed guidelines for cobalt tooling in the target material.