chapter  18
43 Pages

Tools

Double open-end spanners are available in following sizes: 6 × 7, 8 × 9, 10 × 11, 12 × 13, 14 × 15, 16 × 17, 18 × 19, 20 × 22, 21

× 23, 24 × 27, 25 × 28 and 30 × 32.

It is important for a spanner to be a snug fit on a nut or bolt head. If it is too loose, the spanner will slip and round the corners. Make certain that the spanner fits squarely on the sides of the nut or bolt head. Turn the spanner over after each swing so that the opposite face is down and the angle of the spanner opening is reversed. Always place yourself so that you can pull on the spanner to turn the work in the desired direction.