DTG2509 Features: * Ring spanner * To use with club hammer or pneumatic hammer for tightening or loosening * Hot forged and sandblasted * Often used in industry * For very heavy duty work * Width of head (b, b1, n, W3): 2.01", 2.64", 3.7", 3.11", 4.25", 4.96" 5.94", 6.77" or 6.81" * Width of head (b, b1, n, W3): 2.01, 2.94", 3.11", 3.7", 4.25" or 4.96"