Buy the Smart Knife, a multi tool utility knife for use on your boat with 11 tools in one, with free shipping to the UK. 

With its quick release clip that doubles as a bottle opener. The large flat screwdriver aids one-handed opening of the blade. With an array of useful wrenches, and its built in box cutter, this tool is sure to be your most useful companion. 

Smartknife is built from 420 grade stainless steel with anodised aluminium handles, and supplied in a reusable weatherproof hardcase.