Material

The turned piece made in the second supplemental exercise.

Exercise

To turn a dumb-bell of the form and dimensions shown in Fig. 105.

Turn the handle first, using the 1/2-inch skew chisel, and make it 1 1/8- inches in diameter and 7/8- inch at the sides.

Fig 105.

Next, find the centre of each of the larger parts, and mark it around with a pencil, and, using these centre lines as the starting-places for cuts, turn each end to the spherical form shown in Fig. 97, operating in the same manner that the convex curves were made in the regular third exercise. Turn the inside first and then the outside, cutting the ball a small amount inside the outer corner, that the spherical form may be retained. When the balls have been turned on each end, the surplus stock outside of them may be cut off by being first turned quite small in diameter and then cut off with a knife or chisel.

Though these curves are larger than the curves on the regular exercise, they will be found more difficult to cut.