7 METAL WIRE AND STRIP FORMING MACHINES AND PARTS THEREFOR, AND ATTACHMENTS AND ACCESSORIES FOR SUCH MACHINES, NAMELY, CUTOFF UNITS, ANGLE FORMING SLIDES, PRESS HEADS, FORM LIFTER ATTACHMENTS, SHELL-TYPE CAMS, MINIMUM PITCH FEED ADAPTERS, SPLIT SLIDE UNITS, BOOSTER AUXILIARY SLIDES, UPRIGHT PRESSES, GUARDS, STOCK REELS AND STOCK STRAIGHTNERS