SIZE: 3/8",7/16",1/2",9/16",5/8",3/4",7/8",1" (10MM-25MM) CHARACTERISTIC:ROUND AND UPRIGHT HEAD,EVEN THICKNESS,STRAIGHT SHANK,PROPER TAPER,OUTSTANDING EDGES AND CRONERS WITH SLIGHT SPIRAL,GROOVE,THE POINT IS UPRIGHT AND SHARP.BEING ANTIRUST TREATED.IT HAS RELATIVELY STRONG ANTIRUST ABILITY. APPLICATION;REPAIRING VARIOUS SHOES LEATHER,FARM TOOLS,SOFT FRUNITURES AND ETC.