I cut off the protruding joints on my teak deck flush with the wood so that I could then sand and renovate the deck. Working with the Mozart knife was very quick, I needed about 4.5 hours for the entire deck, cockpit and bathing platform of my 42-foot sailing yacht.
Great for cutting the joints. Needed about 4h for the deck and cockpit of a 9m ship. Spare blades not needed. Have the spacers removed to cut as short as possible.