Maykestag HSS-Co5 90° countersink 40mm DIN 335 D with MK3 Morse taper

Overview

Maykestag HSS-Co5 90° countersink 40mm DIN 335 D with MK3 Morse taper Professional 40mm countersink manufactured from HSS-Co5, featuring a 90° countersinking angle, three cutting edges and an MK3 Morse taper shank for precise and efficient countersinking of drilled holes. The Maykestag Form D countersink is a precision HSS-Co5 cutting tool designed for producing clean 90° countersinks in pre-drilled holes. Its three-flute cutting geometry provides balanced cutting action and efficient chip evacuation, while the MK3 Morse taper shank provides a secure and rigid connection to suitable machine toolholders. With a 40mm countersinking diameter and 140mm overall length, this countersink is suited to professional workshop and production applications where accurate, consistent countersinking is required. What is a countersink? A countersink is a cutting tool used to create a conical recess around the opening of a drilled hole. Countersinking allows the head of a suitable countersunk screw or fastener to sit flush or below the surrounding surface. The 90° geometry of this Maykestag tool is designed for producing standard 90° countersinks. Product highlights • HSS-Co5 construction: Cobalt-alloyed high-speed steel provides good heat resistance, wear resistance and cutting-edge durability for demanding countersinking applications. • 40mm countersinking diameter: Large cutting diameter provides the capacity to produce substantial countersinks in suitable workpieces. • 90° countersinking angle: Produces a standard 90° conical recess for compatible countersunk fasteners. • Three cutting edges: Three-flute geometry provides balanced cutting action and efficient chip removal. • Form D: Form D countersink geometry designed for professional machining applications. • MK3 Morse taper: Morse taper shank provides a secure and rigid connection to compatible machine toolholders. • 140mm overall length: Provides useful tool reach while maintaining a robust machine-mounted configuration. • DIN 335: Manufactured according to the DIN 335 standard for countersinks. Why choose Maykestag? Maykestag is an Austrian cutting-tool manufacturer focused on precision-manufactured tools for professional machining. Consistent control of cutting geometry, tool material and dimensional tolerances is important for achieving reliable machining results, tool life and surface finish. This HSS-Co5 countersink combines a robust three-flute cutting geometry with a 90° countersinking angle and MK3 Morse taper shank, providing a dependable solution for producing accurate countersunk holes in workshop and production environments.