Hardy Hole too Big. Need insert ideas. in Anvils, Swage Blocks, and Mandrels Posted September 6, 2013 I have a 275# anvil that has 1" hardy. I also have a portable 140# anvil with 1-1/4" hardy. Does anyone have a decent insert pic or design for this? I wanna use my 1" tools in the 1-1/4" hardy hole. I have several ideas on how to do this but I bet someone out there has been there done that and has a better one. Oh, and BTW... I am hoping to have it built by tomorrow afternoon! Yeah poor planning on my part. :unsure: But I have the whole day off. So I am interested in how anyone handles this using inserts or what have you on tooling and bigger than 1" hardies.