VSG 4720AF Seat/Guide Machine Airfloat table for ease of operation Takes heads up to 47.2" (1200 mm) long Extra-Iong 7.9" (200 mm) spindle travel. 0 -800 spindle RPM provides the best speed for aluminum or cast Iron to ream, hone, cut, drill, face, bore. Faster and more precise operation The airfloat work head moves and centers easily and clamps firmly for better alignment in less time. The work head has a precision ground spindle with 2 3/4" (75mm) quill. Handles larger cylinder heads Compared to other boring bar type machines, more vertical clearance, and since the driver is #3 Morse Taper, it is possible to do a special working. Boring head tilts 15° in both directions. Combined with rotating cradle, the tilting boring head aligns to canted guides at any angle.