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  1. Countersink - Wikipedia

    In manufacturing, a countersink (symbol: ⌵) is a conical hole cut into a manufactured object, or the cutter used to cut such a hole.

  2. What Is a Countersunk Hole, and How Is It Used?

    Apr 21, 2025 · Precision machining is crucial when creating countersunk holes, particularly in high-performance industries such as aerospace. One of the challenges is maintaining …

  3. COUNTERSUNK Definition & Meaning - Merriam-Webster

    The meaning of COUNTERSINK is to make a countersink on (a hole).

  4. How to Countersink Holes: A quick guide - jiga.io

    Dec 17, 2025 · The countersink is a surprisingly recent innovation that resulted directly from the increasing precision of machine tools and the desire for recessed fastener that required a …

  5. What are Countersink Holes in Engineering? | Xometry

    Dec 16, 2022 · Countersunk holes are a type of engineering hole most commonly used for the aesthetic flush fitting of fasteners to render a product surface smoother. This article will …

  6. What Is Countersunk Screw & How To Countersink?

    The countersunk screw also known as a flat-head screw is a type of screw that’s designed to rest flush with the object or surface in which it’s inserted. Countersunk screws are simply …

  7. COUNTERSINK Definition & Meaning | Dictionary.com

    COUNTERSINK definition: to enlarge the upper part of (a cavity), especially by chamfering, to receive the cone-shaped head of a screw, bolt, etc. See examples of countersink used in a …

  8. Countersink Holes: What They Are & When To Use Them | Fictiv

    May 11, 2023 · If you take a look at a milling machine, lathe, or even a laptop, you’ll find countersunk fasteners that sit flush with the surface. For unshrouded moving elements that run …

  9. Countersink Holes: How to Countersink Your Parts - YouTube

    Ever wondered why some screws sit perfectly flush with a surface while others stick out? The secret lies in countersinking! In this video, we’ll dive into what countersinks are, how they work,...

  10. Countersink Hole Size Chart: Drilling, Tools, and Applications

    What is the difference between a countersink and a countersunk? Countersink is a noun referring to the conical hole itself or the tool used to create it. Countersunk is an adjective describing a …