Guhring 9006580035700 Cobalt Drill Bit 9/64 in Tin

Product Description

The GUHRING 9006580035700 is a cobalt jobber length drill bit in the Series 658 line, sized at 9/64 inch (wire size #28, decimal 0.1406 inch) with a titanium nitride (TiN) coating. It features a 130-degree split point, parabolic flute geometry, and a web-thinned tapered web for reduced thrust and faster chip evacuation. Overall length is 2-3/4 inches with a flute length of 1-17/32 inches. Built to DIN 338 standards, this bit is suited for high-performance drilling in production and maintenance environments. Licensed HVAC techs, machinists, and industrial maintenance professionals reach for cobalt TiN bits when standard HSS tooling falls short on harder workpiece materials.

This drill bit is designed for right-hand cutting in cast iron and steel. The parabolic flute profile moves chips out of the hole efficiently, reducing heat buildup during deeper passes. The straight-cylindrical shank seats directly in standard drill chucks without adapters. With a maximum drilling depth of 1.325 inches and a 5xD flute-to-diameter ratio, it handles through-hole and blind-hole operations in light fabrication, HVAC equipment assembly, plumbing rough-in metalwork, and general industrial drilling tasks. It is sold individually.

Key Features

• Cobalt construction with TiN coating for extended tool life in ferrous materials
• 130-degree drill point angle reduces walking and improves entry on flat and curved surfaces
• Parabolic flute design accelerates chip removal and lowers heat at the cutting edge
• Web-thinned tapered web decreases thrust force required during drilling
• DIN 338 specification ensures consistent dimensional accuracy and interchangeability
• Straight-cylindrical shank fits standard 3-jaw drill chucks without additional tooling

Compatibility

Designed as a DIN 338 jobber length drill bit compatible with standard drill chucks accepting a 9/64 inch straight shank. Primary workpiece materials are cast iron and steel (ISO material codes K and P).

Installation Notes

Install in a properly sized drill chuck and tighten securely before use. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Apply appropriate cutting fluid or coolant when drilling steel to manage heat, particularly on deeper passes. Wear ANSI-rated eye protection and follow shop safety protocols at all times.