51/64″ X 1/4″ Straight Shank Counterbore HSS 5/8″ Round Shank 3 Flute DEWCBR51/64 Order Now

Industrial precision counterbore tooling for metal fabrication and mechanical assembly. Designed for high-accuracy pocketing and flat-bottom hole creation in CNC and manual milling environments.

Specs

Counterbore diameter: 51/64″

Shank (straight): 1/4″

Shank (round): 5/8″

Flutes: 3

Material: HSS (High Speed Steel)

Features

Three-flute geometry provides efficient chip evacuation and stable cutting in counterboring operations.

Counterbore capability: creates flat-bottom pockets for socket head cap screws and similar fasteners, ensuring flush seating.

Material: HSS (High Speed Steel) delivers high-temperature performance and wear resistance during high-speed machining.

Shank versatility: compatibility with standard tool holders via straight ¼ inch shank or round 5/8 inch shank configurations.

Applications: suitable for metal fabrication, fixture manufacturing, machine frames, and precision component assemblies requiring accurate counterbores.