A radical departure from regular methods is shown in Fig. 12. The work A for which the equipment was designed is a cast-iron triple gear blank. Attention is called to the fact that in this illustration the side-head is shown in a false position in order to show the cutting action more clearly. The body H of the multiple turning tool is fitted to the turret and held in position by the screws C. A steel bushing G acts as an outboard support for the tool, and it is a sliding fit on the pilot P which is shouldered in the supporting bracket N. This bracket is heavily ribbed and is fastened to the bed of the machine. The adjustable washers at M are used to align the bracket properly. A tool-block D contains the two turning tools E and F, and the boring-bar K is held in the hub J. The arrangement of the side-head, in this instance, is a little out of the ordinary. A special tool-block Q contains the two facing tools R and 8, and these work simultaneously with the turning tools, thereby making production very rapid.

Fig. 12. Piloted Multiple Turning Tool for Triple Gear Blank.