Blue Spruce Toolworks was appropriately founded upon a simple but finely crafted marking knife. Precision layout and marking are the foundation of fine joinery. Our marking tools have evolved into an interchangeable system of blades and handles that cover all of your marking requirements from dovetails, mortise and tenons, half-lap joints, curved templates, holes and centerpoints to simple crosscuts on boards. The system includes your choice of handle style and wood choice, your choice of blades and your choice of hardware finish: your personalized marking system for your finest work. Once you have a handle you can add additional blades to complete your marking kit. We have put together an excellent starter knife with the SMK (Small Marking Knife) or you can build your own with handles, blades and collet selections. Feel free to email or call if you would like any assistance putting together a marking system customized for your requirements.