Check the listing for details. WOODRIVER Project Kit - Screw Cap Fountain Pen Kit. Condition: New. Listed at 18.99 USD. NEW, WOODRIVER Project Kit - Screw Cap Fountain Pen Kit, 128435, Requires 5/8"x5 /8"x4" blank, 3/8" bradpoint bit, pen mandrel and European Style Screw Cap bushing, Kit features 24k gold plating, Fountain Style, Requires 5/8"x5 /8"x4" blank, 3/8" bradpoint bit, pen mandrel and European Style Screw Cap bushing, Create the pen yourself with this kit and your lathe.Kit Requires a Blank of Wood or Man Made Material, Bits, Mandrel and BushingRequires 5/8"x5 /8"x4" blank, 3/8" bradpoint bit, pen mandrel and European Style Screw Cap bushingFinally, this classic European style pen can be made with a cap that screws on and off! These kits utilize "straight" tubes, eliminating the need for problematic step drilling. Threaded components press fit so the cap screws on to protect the pen mechanism when.