Replacement Bits for #8 Trim Smart-Bit Pre-drilling and Countersinking Tool (item # BDA141) Five (5) Replacement Bits for Use With #8 Smart-Bit pre-drilling and countersinking tool The Smart-Bit Tool (not included) Pre-drills and countersinks in one easy step The Smart-Bit stop collar spins free of the drill bit, preventing marring of the deck surface Each Package comes with 5 replacement bits