. Teacher's handbook of Slöjd . o bore holes varying in diameter from ^ inch to 3 inches. A screiu-driver hit (Fig. 72, E), two or three countersinkdrills (Fig. 72, F and G), and a couple of square or hexagonalhole-rhners (Fig. 72, D) are usually included ina complete set of bits. The counter-sink drillis used to produce a conical hole in wood ormetal, suitable for sinkino- screw-heads. Therimer enlarges holes in thin metal plates, ,vQ^Y holes in hinge-plates. o. The Bradawl (Fig. 75). This tool consistsof a steel bit yV inch to ^ inch thick, and 2 incheslong. Its point is like that of
. Teacher's handbook of Slöjd . o bore holes varying in diameter from ^ inch to 3 inches. A screiu-driver hit (Fig. 72, E), two or three countersinkdrills (Fig. 72, F and G), and a couple of square or hexagonalhole-rhners (Fig. 72, D) are usually included ina complete set of bits. The counter-sink drillis used to produce a conical hole in wood ormetal, suitable for sinkino- screw-heads. Therimer enlarges holes in thin metal plates, ,vQ^Y holes in hinge-plates. o. The Bradawl (Fig. 75). This tool consistsof a steel bit yV inch to ^ inch thick, and 2 incheslong. Its point is like that of an awl, or it may bechisel-pointed. The bit is secured in the handleby a screw-socket. Several bits of differentsizes belono^ to the tool, and the handle, whichis hollow, serves as a case for them. The brad-awl is used to bore holes for sprigs, nails, holes are bored with the chisel-pointedbit, the edge is placed across the grain of thewood, and pressure is exerted in this directionto prevent the splitting of the tc/ Fig. 75. Brad-awl. ^. X. The Mallet, the Hammer, the Hand Vice, Pincers,and Screwdriver. The Mallet (Fig. 76) is made of hard, strong wood, pre-ferably of figured beech. It is used for striking tools withwooden handles, because the hard hammer in such cases TOOLS. 113
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