A counterbore hole is usually used when the head of a fastener, such as a hex head or socket head capscrew, is required to be flush with or below the level of a workpiece's surface.

What Is a Counterbore? A counterbore is a hole-making tool that enlarges a portion of an existing hole to create a flat-bottomed recess for a screw, bolt, or nut head.

Counterboring is the secondary machining process of creating a cylindrical shape at the top of a hole using a counterbore. Counterbored holes are often used to recess socket head cap screws below the …

Oversized Counterbore Sets Cut oversized openings for a range of screw-head diameters to prevent binding

Aug 9, 2022 · A counterbore is a flat-bottomed cylindrical hole that is larger than and coaxial to another cylindrical hole. It is used to provide a flat and recessed mounting surface for mating parts.

Dec 30, 2024 · A counterbore creates a flat-bottomed, enlarged opening so that the head of a screw or bolt can sit flush with or below the surface, while a countersink creates a conical recess for the screw …

In this article, we’ll define counterbore holes, explain when to use a counterbore, and describe how to call out a counterbore hole in your designs so that it’s manufactured properly.

Dec 17, 2024 · What is a Counterbore? A counterbore is a type of hole machining that involves creating a flat-bottomed hole with a larger, shallow recess at the top of an existing hole.

Dec 30, 2023 · This guide helps product developers and engineers choose the optimal counterbore solution for their specific requirements.

Feb 12, 2024 · What is a Counterbore? A counterbore can be defined as a precision-engineered cylindrical cavity featuring a flat bottom surface, strategically designed to be larger than and aligned …