Designed with the patented Wave Cutter structure, these FISCH Tools Forstner bits have been tested against other leading bits and have been proven to drill 3x the number of holes before needing to be re-sharpened. Their unique non-clogging design allows you to drill precise holes quickly without burning, while helping to increase the overall life of the bit. Designed for the professional trade, and can be used in portable power drills and stationary boring machines. The FISCH Tools 5-piece Wave Cutter Forstner Bit Set features high-performance, next-generation Forstner bits that drill smoother and last longer than any other Forstner bit on the market. These industry-leading bits require 25% less power to drill smooth, precise holes in softwoods, hardwoods, and laminates.