SKS uses modified metals to make chipper knives while they are hardened at a certain range to keep its toughness. Both tests and facts show that wood chipper knives from us last more than 10 hours before they are resharpened. We also carry on hardness combination to extend its working life, therefore saving money for our customers. While most manufacturers perform only group grinding on chipper knives, we add precision grinding. Over the years, SKS has been making and delivering Chipper Blades for the following brands: Pallmann, Bruks, Klockner, Precision etc. Contact us with a print and start saving today.