NBJA = 125mm x 200mm or 4.92" x 7.87" Faceplate WorkholdingVertical Boring Mill JawsJ = 4.92"/125mm = Longitudinal Anchor Hole Center DistanceE = 7.87"/200mm = Overall Length of the Jaw"NEW VERTICAL & HORIZONTAL FACE PLATE WORK HOLDING CHUCK JAWS"
125mm (4.92") Center Distance of Anchor Holes x 200mm (7.87") Overall Length

