P1640003932 Apex Tool Supply Replacement for Bostitch Nailer Safety Pad SB-1664FN SB-1664FN SB-1664FN 4148000 SB-1664FN 5335001 and Highe

The Safety Pad is attached to end of the safety to prevent the material that it is being used on from getting marred or dented by the safety arm. It is a advisable to have one or two extra pads on hand as they do have a tendency to crack and deteriorate after time.