Hovedværktøj

Hovedværktøj is a Danish term meaning “main tool” and is used in machining and manufacturing to refer to the primary cutting tool employed for a given job. In machine tools such as CNC lathes, milling machines, and turning centers with tool turrets or automatic tool changers, several tools are available for different operations. The hovedværktøj is the tool designated to perform the principal cutting task in a setup. Other tools may be used for secondary operations such as drilling, deburring, or finishing, but the hovedværktøj typically governs the main material removal and initial geometry.

The choice of hovedværktøj depends on factors including workpiece material, desired feature, surface finish, tolerances, and production volume. Common examples include turning tools, end mills, and chamfer tools, selected for efficient bulk removal and appropriate tool life. Coatings, geometry, and tool material are chosen to optimize cutting performance for the specific application.

In practice, the hovedværktøj is identified during planning and persisted in the operation sequence or program. Setup activities such as tool length measurement and offset calibration support accurate positioning of the main tool. Ongoing maintenance includes monitoring wear, breakage, and replacing the tool when performance diminishes or tolerances can no longer be met.

The concept reflects Danish machining practice and has parallels in other languages, where a primary cutting tool is designated for the main operation while auxiliary tools handle secondary features.