Back Beveler Swivel Knife Attachment, Barry King Leather Working ToolThis Barry King Back Beveler Swivel Knife Attachment is great for rounding edges. The concave surface is particularly useful around borders. The shank on the blade is 7 32" in diameter. Fits all swivel knives we carry as well as most Craftool style swivel knives. Will NOT fit in a Barry King swivel knife. Make sure to measure the shank on a blade that fits your knife before purchasing. 1 5 32" wide 2 7 32"wide Barry King Tools have gained a reputation