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3/8"- 40 Threaded Shank Stop Countersink HSS 1/4"-28 Threaded Shank TSC3/8-40 Special Offer
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3/8″- 40 Threaded Shank Stop Countersink HSS 1/4″-28 Threaded Shank TSC3/8-40 Special Offer

Original price was: $9.42.Current price is: $4.90.

For orders under $150.00, a shipping fee of $12.99 applies.

SKU: SKHWTA01O42 Category: Tag:
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Industrial-grade stop countersinks with threaded shanks enable precise countersinking in CNC and manual machining environments. Built from high-speed steel to withstand heat and retain edge geometry under continuous use.

Specs

    Material: HSS

    Variant 1 – Shank diameter 3/8 inch; Thread type #40

    Variant 2 – Shank diameter 1/4 inch; Thread type 1/4-28

Features

    Stop countersink: Maintains consistent countersink depth across multiple holes to reduce depth variation and scrap.

    Threaded shank: Enables secure seating in tool holders and collets; supports rapid tool changes and vibration resistance.

    Material advantages: High-Speed Steel core provides wear resistance and edge retention under high cutting temperatures.

    Variants: Two shank diameters available to fit different spindle adapters and tooling configurations.

    Applications: Suitable for producing flush or near flush fastener heads in steel, aluminum, and other metal workpieces in industrial manufacturing environments.

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