Starrett FCH0196 40mm / 1.9/16\" Fast Cut Bi Metal Hole Saw The Fast Cut saw combines a new tooth material - with enhanced heat and wear resistance - and a new tooth design, providing a smoother, faster cut on a wide range of materials.  Specifically suited to cutting stainless and mild steel sheet, the Fast Cut will also cut through tubes with a wall thickness of up to 3mm (1/8”). FEATURES New tooth material for enhanced heat and wear resistance and greater product life Ideal for stainless and mild steel sheet and tubes with wall thickness of up to 3mm (1/8”) New 5.5 TPI / 25mm tooth form provides a smoother, faster cut in all materials 41mm (1.5/8\") hole saw depth SPECIFICATION Pack Qty: x1 Pc Part No: FCH0196 TPI: 5.5 Size: 40mm Hole Saw Depth: 41mm