Item No.: H05S035
·Entire Material:Cr-V Steel   
·Head Material:42CR-MO   
·Size:5/16",3/8",7/16",1/2",9/16",5/8",11/16",3/4"   
·Metrics 8, 10, 11, 13, 14, 16, 17, 19 MM   
·Manganese phosphate   
·Semi-polished   
·Heat treatment