Engineered for chatter-free performance, precise chamfering, and uniform deburring, the Guhring 90 Degree Countersink Set range represents the industry gold standard for hole finishing. Manufactured to demanding DIN 335 Form C industrial standards, these premium multi-flute countersinking tools feature optimized flute geometries designed to provide smooth material removal and excellent chip clearance. The 90-degree angle is perfectly calibrated for producing standard countersunk screw recesses and clean edge finishes. Available in both premium High-Speed Steel (HSS) and high-hardness Cobalt (HSS-E) configurations, Guhring's boxed sets offer a versatile selection of head diameters to suit everything from structural steels and aluminum to tough, work-hardening stainless steel in manual or CNC applications.
