ABSTRACT
A body repair worker must have a good general knowledge of engineering drawing and surface developments in order to mark out replacement parts on sheet metal. A scriber is used when marking out work and will leave a fine line on the metal surface. The poorest grade is used for marking out material appertaining to bodywork; it also supports the work during marking out and is often used as a datum from which all measurements can be taken. Measuring rules can be adjustable or non-adjustable. The adjustable type is usually of the folding variety, but there are also thin spring-steel rules which are referred to as steel tapes. Rules should not be misused as feeler gauges, scrapers, screwdrivers or levers; the end of the rule particularly should be preserved from wear because it usually forms the basis of one end of the dimension. A depth gauge is designed to measure the depth of holes or recessed surfaces.
