Create flat-bottomed holes, so your screw heads sit flush, recessed, or slightly raised. Choose from our selection of counterbore tools, including inch size high-speed steel counterbores, oversized high …

Online shopping for Counterbores - Cutting Tools from a great selection at Industrial & Scientific Store.

Monaco Tool Company, Manufacturer of Heavy Duty Diesel Engine Tools, Since 1986. Proudly making tools in Eugene, Oregon, USA. We are Monaco Proud!

Counterbores are used with drilling machines to drill a hole into hard materials. As holes are drilled, only enough material is removed to allow the nut or bolt to sit flat, ensuring that most material remains.

4 days ago · Apex Tool Company carries a full range of upper and mid stop counterbore tools. Our M series upper counterbore tools are designed to be low profile and allow in chassis shim cutting on …

CH - Adjustable Counterbore Tools - Covers range of bores with one tool - Easily set to any diameter

Engineered with a flat bottom (no dish) design, allowing for spot facing or counterboring on irregular surfaces. Counterbores designed for castings, concaved parts, or rounded surfaces. Available in …

Jan 20, 2026 · Product Category: Counterbore Tools - Description: Holemaking - Counterbore Tools

Counterboring tools and drilling inserts are designed for creating precise and accurate holes of any diameter. The STS toolholders are available in Whistle Notch™ and Weldon™ shanks and are great …

A counterbore is a cylindrical hole with a flat bottom that allows fasteners, like screw heads, to sit neatly embedded in the workpiece. This is essential in applications where a clean finish is important, …