3/8″- 30 Threaded Shank Stop Countersink HSS 1/4″-28 Threaded Shank TSC3/8-30 Flash Sale

Industrial stop countersinks with threaded shanks deliver precise countersinking depth and secure tool retention in metal fabrication workflows. These tools enable repeatable chamfers and compatible integration with CNC mills, drill presses, and automated production lines.

Specs

Dimensions: Shank diameter options of 3/8 inch and 1/4 inch

Thread type: 3/8 inch shank with #30 thread; 1/4 inch shank with #28 thread

Material grade: HSS

Features

Depth stop: Integrated stop provides repeatable countersink depth for each hole, improving edge quality and consistency in metal fabrication.

Threaded shank retention: Threaded shank design enables secure seating in chucks and collets, reducing runout and enabling quick tool changes in automated setups.

Material: High-speed steel construction delivers wear resistance at typical machining speeds and supports long tool life in aluminum, mild steel, and nonferrous alloys.

Applications: Suitable for precision countersinking and chamfering in sheet metal, brackets, enclosures, and machined components.