3/8″-5/16″ Threaded Shank Stop Countersink HSS 1/4″-28 Threaded Shank TSC3/8-5/16 High Quality

Professional stop countersinks with threaded shanks enable depth-controlled countersinking for metalworking applications. These tools mount securely on machine spindles or fixtures to deliver consistent flush finishes and repeatable results in industrial environments.

Specs

Thread type: 1/4″-28

Material grade: HSS

Features

Depth control: Stop collar provides precise countersink depth, ensuring flush seating for screw heads and preventing over-penetration on metal surfaces.

Threaded shank: Threaded interface enables secure mounting on compatible chucks, adapters, or machine fixtures, reducing runout and vibration during operation.

Material performance: High Speed Steel offers wear resistance and heat tolerance for long tool life when countersinking ferrous and non-ferrous metals.

Applications: Suitable for precision fabrication, machine shop assembly, and field servicing requiring repeatable countersink depth and uniform surface finish.