The Gardena 8712-20 Sharpener is a versatile unit for the sharpening of knives, blades and axe tips. The grinding process is efficient and reliable as the guide slot is configured to sharpen in both directions. The ergonomically-shaped robust handle and the non-slip base ensure easy handling and user-safety while sharpening. Diamond-coated grinding disks and dual slots make for easy, convenient and flexible work across a wide variety of large and small tools. Perfect to quickly restore knives and axes to their original sharpness. This product is supplied with a 25-year warranty. Features and BenefitsKnife, axe and blade sharpener with diamond coated grinding disksLarge slot for axes and small slot for smaller tools like knivesSuitable for left and right handed usersThe grinding disks work in both directions on forward and backward strokesErgonomically-shaped handle guarantees easy handling and safe workRust-proof stainless steel insert in the handleSecure, non-sl