How To Hollow Out Wood With A Dremel . We explain the tools and equipment you will need, along with an easy to follow step by step guide. Once the log has been sufficiently hollowed out, you’re going to need to. Hummingbird Dremel projects, Dremel, Wood creations from www.pinterest.com A router is a tool used to hollow out. If you want to create a unique book sculpture, you can use a dremel tool to hollow out the spine of your favorite book. Burn (carefully) with a torch then scrape out the burned wood.