Stanley claw hammer steel shaft (black and chrome):-20 oz claw hammer steel shaft 51-158 from stanley, world's leading manufacturer of tools from past 160 years. The hammer being made from premium quality steel is very strong. The hammer is individually heat-treated to give it a long life. The tubular steel shaft is hardened and tempered for additional strength. The shaft length is increased by 15% for better balance and control and the grip is increased by 15% for better performance. A flock filled rubber grip is attached to the shaft for comfort and durability.,stanley 20 oz claw hammer steel shaft 51-158 is manufactured as per as ansi specifications.