Comparison : Item # 45,848, Steel W1 Round Bar 0.0625x36"
Item # 45,849, Steel O1 Round Bar 0.0625x36"
Item # 45,850, Steel A2 Round Bar 0.0625x36"
Item # 45,851, Steel M2 Round Bar 0.0625x36"
Item # 45,852, Steel W1 Round Bar 0.0625x144"