MAGBIT 624.6216 MAG624 3-7/8-Inch Bi Metal Holesaw with 1-3/4-Inch Depth 1-3/4-Inch depth, 4/6 variable pitch tooth combination reduces vibration Tough 3/16-Inch thick back plate Deep gullet design for improved chip removal Cuts through 2-Inchx4-Inch in one easy pass Faster cutting and more holes per saw