Concord Blades MCB0438T040HP 4-3/8-Inch 40 Teeth TCT Ferrous Metal Cutting Blade M-TCG Grind: Triple Chip Grind Ultra sharp, hard titanium carbide 5/8"-20mm Arbor Thin kerf allows a smooth finish w/ minimal waste. Lower hook angle improves the surface quality of the cut, increases the feed pressure required. 1.6 mm thin kerf design