What is "scratch awl"

n. a sharp-pointed awl for marking wood or metal to be cut [syn: scriber, scribe]

A scratch awl is a woodworking layout and point-making tool. It is used to scribe a line to be followed by a hand saw or chisel when making woodworking joints and other operations.

The scratch awl is basically a steel spike with its tip sharpened to a fine point. The tip of the spike is drawn across the timber, leaving a shallow groove. It may also be used to mark a point by pressing the tip into the timber. It is generally used when dimensioning and for laying out with the grain. It may also be used across the grain. However, a marking knife is preferred for this operation.

Scratch awls are traditionally used in leather-crafting to trace patterns onto leather. They are sometimes used in the automotive and sheet metal trades to punch holes and scribe lines in sheet metal.