GIDDINGS & 450. Horizontal Table Type Boring Mills. GIDDINGS & CNC HORIZONTAL BORING MILL MODEL 450 6" SPINDLE SIZE, #50 ANS TAPER, 96" MAX VERTICAL TRAVEL, 60" MAX TRAVEL IN AND OUT, 36" SPINDLE TRAVEL, SPINDLE SPEED 12-1120 RPM, 6'X10' TA... Pennsylvania, United States | GIDDINGS & .