Ideal 36-502 19pc Bi-Metal Hole Saw Kit

Bi-metal hole saws kits constructed from M42 high speed steel with 8% premium cobalt content, resulting in high-strength, greater wear resistance and less prone to chipping. Rigid solid steel back plate for clean true holes and longer tool life. Unique fleem ground teeth design results in improved performance and efficient chip removal. 4/6 variable pitch geometry cuts down on harmonic noise to minimize tooth strippage.