Designed specifically for either the 7-oz. or the new smaller 10-oz. Bonny Doon urethane hammer, these inserts are threaded to be interchangeable with the flat-face insert of the hammer, giving you both a domed, 95-durometer face ideal for forming curves and a harder flat surface for your forming needs. This set includes one domed insert and one flat insert
• IMPORTANT! If you own one of the larger original 10-oz. Bonny Doon urethane forming hammers (110903), these inserts will be too small for your hammer; choose the larger-sized replacement insert set (110906) to properly fit your hammer.