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Stanley and Veritas marking gauges. A marking gauge, also known as a scratch gauge, [1] is used in woodworking and metalworking to mark out lines for cutting or other operations. [2] The purpose of the gauge is to scribe a line parallel to a reference edge or surface. It is used in joinery and sheetmetal operations.
A wood scribe is a tool for marking wood by scratching the surface visibly. A wood scribe is often used with a try square for accurate scribing. A marking gauge is a more specific form of wood scribe used to accurately mark wood for cutting, often for laying out mortise and tenon joints. [1]
Some marking knives incorporate a marking knife blade at one end, and a scratch awl tip at the other end – but because of this they are sometimes considered dangerous to use. [ 3 ] [ 1 ] Marking knives are either made from a single piece of steel, or additionally have a handle made of wood or plastic.
The hammer would create a recognizable marking to show the owner or buyer of the tree. After marking all the trees on a stand it would be ready for cutting. Felled logs could be marked also with a log marking hammer which was used on the end of the logs. [1] [2] Nowadays the marks on standing trees are done usually with paint. [3] [4]
[1] 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. [2] It is generally used when dimensioning and for laying out with the grain. It may also be used across the grain.
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The reasons for making marks varies and includes keeping count (tally marks), identifying parts (carpenter's marks), numbering, and tracing patterns around a template as a part of marking out. The gouges left by the timber scribe are more durable than pencil or chalk marks.
The ard, ard plough, [1] or scratch plough [2] is a simple light plough without a mouldboard.It is symmetrical on either side of its line of draft and is fitted with a symmetrical share that traces a shallow furrow but does not invert the soil.