Thincut

Thincut is an informal term used in a variety of technical contexts to describe a shallow or narrow cut. There is no single standardized definition recognized across major reference works.

In woodworking and carpentry, thincut commonly refers to a preliminary or guide cut that is intentionally shallow, used to establish a cut line, reduce tear-out on delicate surfaces, or create a starting groove for a deeper cut. The technique aims to improve control and finish quality, especially on brittle or veneered materials.

In metalworking or sheet processing, thincut may describe a shallow, narrow cut used to open a kerf or to introduce a groove that guides subsequent machining. It can help minimize deformation when cutting thin-walled parts.

Etymology: likely a portmanteau of 'thin' and 'cut'. The term's usage is informal and highly context-dependent.

See also: kerf, scoring, groove, dado, parting line.