Forrest WW04T407080 Woodworker II  4-3/8-Inch 40 Tooth 20mm Arbor 5/64-Inch Kerf Circular Saw Blade Woodworker II circular saw blade offer a superior cut that leaves a rip-cut saw edge The blades run very quietly, and backside tearout in plywood is negligible Each blade is virtually hand-made Blade has longer life span 50 to 300 percent between sharpenings and it improves labor efficiency This 40 tooth saw blade measures 4-3/8 inches in size, kerf measures 5/64 inches in size Woodworker ii circular saw blade offer a superior cut that leaves a rip-cut saw edge The blades run very quietly, and backside tear out in plywood is negligible Each blade is virtually hand-made This blade has longer life span 50 percent to 300 percent between sharpening's and also it improved labor efficiency This 40 tooth saw blade measures 4-3/8-Inch in size, kerf measures 5/64-Inch in size