Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 10

THE simplest of these is the lead pencil, which is of a flat oval section sharpened to a chisel edge; if sharpened to a point, the pencil wears away quickly and is capable of marking a fine, solid line for only a few minutes together. There is a greater body of lead in the chisel edge, which therefore lasts some time before requiring to be resharpened. Steel scribing and marking tools are illustrated by Figs. 1 to 3. The chisel end marking awl (Fig. 1) and the striking knife (Fig. 2) are used for all purposes of scribing and marking smooth work, where an indented line answers the purpose better than a black line, the scratch providing a good starting point for edge tools. It is advisable to use a pencil for rough surfaces. A home-made striking knife (Fig. 3) commonly used in workshops is ground down from an old table knife.

Fig. 1.—Chisel-end Marking Awl.