I just finished making a hammer from scratch. While I would do it again…..if I had to…. I now know it would not be very enjoyable! My suggestion, if just cracked, send it to someone that knows what they are doing. I’ve had a few items repaired by Peter Nagel of Restorative Welding. While not cheap, it is well done. restorativewelding.com 815-732-1249