My Dad swung a 13 oz. Plumb hammer with an octagon handle all his life. They became scarce, nay Impossible to find and between me and my younger brother, we broke all but one of Dad's handles. I have searched for any NOS of these hammers but there are 0 to be found. I was grateful to find Beaver-Tooth Handle Co. They have the exact handle and I have replaced one of the broken ones in Dad's shop so far. He was thrilled to see a "brand new" Plumb. Thanks Beaver-Tooth Handle Co.!