When it comes to hole saws, look no further than IDEAL® Bi-Metal Hole Saws as the top choice. Constructed with M42 high-speed steel with 8% premium cobalt content, these saws boast exceptional strength and wear resistance, thanks to their rigid solid back plate. The extreme deep gulleted teeth clear out uniform chips efficiently, minimizing binding and delivering 1.2x faster drilling times compared to other brands. With a standard 1-7/8” cutting depth, you can effortlessly cut through 2x4s in a single pass. These hole saws are versatile, effectively cutting through stainless steel, sheet metal, and non-ferrous materials like aluminum, copper, brass, wood, engineered wood, nail-embedded wood, and plastics. Their unique fleem ground teeth design enhances performance and chip removal, while the 4/6 variable pitch geometry reduces harmonic noise and tooth strippage. Diamond cutouts (on sizes from 7/8" to 6"), and large, cat eye openings on the back plate (on sizes 2" to 6") provide a line of sight and allow for quick plug removal. IDEAL bi-metal hole saws are a reliable and efficient tool for any job.