Efficient and User-Friendly Sharpening Spyderco's Tri-Angle Sharpmaker simplifies the sharpening process, allowing anyone to effectively sharpen knives with minimal practice. The system ensures the correct angle is maintained between the blade and the stone for consistent results. Accurate Angle Control The durable ABS plastic base features keyed holes that set the stones at precise sharpening angles of 30° (15° each side) or 40° (20° each side), accommodating a range of knives. Versatile Sharpening Options Suitable for both straight and serrated blades, the Sharpmaker allows you to sharpen a variety of tools with ease. For serrated edges, the rounded corners of the stones enable detailed work on each serration. Comprehensive Sharpening Kit The system includes two sets of high alumina ceramic stones—medium-grit for shaping and fine-grit for finishing—alongside a set of safety rods for hand protection. All components are stored neatly in the base and lid. Specifications: Sharpening Angles: 30° and 40° Base Material: Durable ABS Plastic Sharpening Stones: High Alumina Ceramic Medium-Grit (Brown) Stones Fine (White) Stones Safety: Aluminum Safety Rods Storage: Self-contained ABS Plastic Base and Lid Extras: Detailed Instruction Book and DVD Stone Length: Suitable for a variety of blade lengths Ideal for: Knives, Scissors, Awls, and Other Tools