Maximum capacities:

• Steel or iron: 5/8 inch round stock; 1/2 by 1/2 inch square stock; and 1-3/16 by 5/16 inch strip stock
• Wrought iron: 15/32 inch round stock; 13/32 by 13/32 square stock; and 1-3/16 by 1/4 inch strip stock
• Brass and copper: 5/8 inch round stock, 15/32 by 15/32 inch square stock; and 1-3/16 by 5/16 inch strip stock
• Aluminum: 23/32 inch round stock; 19/32 by 19/32 inch square stock; and 1-3/16 by 13/32 inch strip stock