Cross Pein Forging Hammer $400.00 Cross Pein hammers are made to order. The hammers will be hand forged from S7 tool steel with a 17 inch hickory handle. Store › Cross Pein Forging Hammer Quantity: Add To Cart Added! Cross Pein hammers are made to order. The hammers will be hand forged from S7 tool steel with a 17 inch hickory handle.