Designed for professional use|Bi-metal construction with 8% cobalt for increased wear resistance|Holesaws with standard attachment to fit a wide range of arbors|High quality in terms of precision, durability and versatility|No matter what you are cutting through, we have the holesaws and arbors to tackle the job, time after time|Engineered to improve productivity and craftsmanship from the design of the cutting edges to the technologies used to produce the holesaws