详细介绍：

SELF-CENTERING GUARANTEED TO 0.0005" 
STOCK NO. 1057-0008  
FEATURES:  
TWO-PIECE REVERSIBLE JAWS 
HIGH STRENGTH SEMI-STEEL BODY 
LATHE CHUCK RUNOUT ADJUSTABLE TO .0005” BY 4 SIDE SCREWS 
ALL JAWS ARE STANDARD AMERCIAN TONGUE ANG GROOVE 
CHUCK DIAMETER 8..15"      THRU HOLE 2.48"     MAXIMUM GRIP 7.30"
WEIGHT 35 lbs.