Best Choice 5/8″-60 Degree 4 Flute Machine Countersink HSS 1/2″ Round Shank DEWMSK5/8-60

Professional metalworking countersinks designed for precision countersinking in CNC and manual machining environments. This product features a 5/8 inch diameter, 60 degree countersink with 4 flute geometry, a 1/2 inch round shank, and HSS construction for robust performance.

Specs

Diameter (Countersink): 5/8 inch

Angle: 60 degrees

Flutes: 4

Shank diameter: 1/2 inch

Material: HSS

Features

Flute configuration: 4 flute countersink geometry designed for efficient cutting and chip evacuation in metal substrates.

Material: High-Speed Steel (HSS) substrate provides wear resistance and heat tolerance during high-speed machining.

Application: Suitable for countersinking holes to create standard chamfers for machine screws, improving seating and reducing edge burrs.

Shank compatibility: Round 1/2 inch shank fits standard tool holders and collet chucks in CNC mills, drill presses, and manual milling machines.

Machining performance: Maintains edge retention under typical production speeds, enabling repeatable hole preparation and consistent finish quality.