Best Counterbores of 2025

The Accusize Counterbore Set is a versatile tool kit designed to meet various machining needs. It comes with 14 interchangeable pilots featuring a 5/32" shank, allowing you to easily switch sizes from 0.187" to 7/16" for different tasks. The set also includes 6 counterbores ranging from 5/16" to 5/8", ensuring precision for your projects. With a 3/8" straight shank holder, you gain added convenience and efficiency in your work. All tools are housed in a sturdy aluminum case, keeping them organized and protected from damage.

The Accusize Cap Screw Counterbore Set is a high-quality tool designed for creating recesses in workpieces for cap screws. Made of high-speed steel with a straight shank, this set includes 7 pieces ranging from 6# to 1/2''. With these counterbores, you can easily attach components to your workpiece using cap screws, especially when the component has a thickness greater than the length of the cap screw. Additionally, the counterbores allow you to create a flush or countersunk appearance for the cap screw heads, giving your workpiece a neat and professional finish. Whether you need to attach components or enhance the appearance of cap screws, the Accusize Cap Screw Counterbore Set is a reliable and convenient choice.

The Accusize Counterbore Set is designed to meet your diverse countersinking needs with its range of sizes, including #6 to 1/2 inch. Made from high-speed steel, these tools provide durability and exceptional cutting performance, making them perfect for various projects. The efficient 3-flute design enhances chip removal, ensuring a clean finish for your precision machining tasks. Additionally, the universal straight shank allows for compatibility with different drilling and milling machines, giving you flexibility and convenience in your work.

The HHIP 2007-0023 Counterbore Set is a versatile and convenient tool for any workshop. This set includes 14 pilots with a 5/32" shank, ranging from 0.187 to 7/16, and 6 counterbores ranging from 5/16 to 5/8. The set also comes with a holder with a 3/8" shank, all neatly organized in a fitted case. The interchangeable pilots allow for precise and accurate counterboring, while the different sizes of counterbores cater to a variety of hole diameters. The straight shank design ensures stability during use. With this counterbore set, you can easily create recessed holes for screws or other fasteners, saving you time and effort. The HHIP Counterbore Set is a reliable tool that will enhance your drilling and machining tasks.

The Accusize Counterbore Set is a versatile toolset designed for creating recesses in a workpiece for cap screws. With a total of 7 pieces, this metric set includes sizes ranging from M3 to M12, allowing you to work with various cap screw dimensions. Made from high-speed steel, these counterbores ensure durability and longevity. The straight shank design provides stability and ease of use. With a 3-flute construction, these counterbores deliver efficient and precise cutting. Whether you need to attach components using cap screws or achieve a flush or countersunk appearance, the Accusize Counterbore Set is a reliable choice.

The Accusize Counterbore Set is designed for precise machining tasks, featuring high-speed steel construction for durability and effective material removal. With both inch and metric sizes included, you can easily work with a variety of screw sizes, making it versatile for different projects. The straight shank design allows for compatibility with various drilling and milling machines, ensuring you can tackle any job efficiently. Additionally, the set includes a range of pilot and cutting diameters, giving you the flexibility to achieve the perfect fit for your components.

The Shars Counterbore Set is a versatile tool collection that includes 13 different counterbores, ranging from 1/4" to 1". With a straight shank design, these counterbores are easy to use and fit into a variety of drills, making your projects more efficient. The three-flute design helps in achieving smoother finishes and faster cutting, which is essential for precision work. This 40-piece set offers a wide range of sizes, ensuring you have the right tool for any task, greatly enhancing your woodworking or metalworking capabilities.

The POWLAB Counterbore Set is a set of high-speed steel mill cutters designed for use with milling machines. Made of hard high-speed steel, these mill cutters offer high toughness and abrasion resistance, making them suitable for high-speed cutting on materials with high hardness. With 4 flutes and a straight shank, these counterbore end mills provide efficient cutting and reduce the need for tool changes, improving machine actuator movement efficiency and saving mold making time. The set includes 5 sizes (m3, m4, m5, m6, m8), making it versatile for milling various materials such as copper, aluminum, steel, and cast iron. Whether you're working on industrial projects or DIY tasks, the POWLAB Counterbore Set is an essential hardware tool that offers convenience and efficiency.

The DBM IMPORTS Counterbore Set includes seven high-speed steel tools, designed to help you effortlessly expand rough holes for bolt processing. With three cutting lips, these tools provide smooth chip flow and strong cutting resistance, making your tasks easier and more efficient. The set comes in various sizes, allowing you to choose the right tool for your specific needs. Plus, it includes a storage case for convenient organization and portability, ensuring that you have everything you need right at your fingertips.

All Industrial Tool Supply presents the 21 Pc. Counterbore Set, a versatile toolset designed to make counterboring tasks effortless. The set includes 6 counterbores with diameters ranging from 5/16" to 5/8", allowing you to easily create recessed holes of various sizes. Additionally, 14 interchangeable pilots are provided, ensuring precise alignment and accurate drilling. The pilots cover a wide range of sizes, from .1870" to 7/16". Made of high-quality High-Speed Steel (HSS), this counterbore set offers durability and long-lasting performance. With the included 3/8" shank and wrench, you have everything you need to get started right away. Whether you're working on woodworking projects or metalworking applications, the All Industrial Counterbore Set is a reliable and convenient choice.