<b>Specification: </b> <br>Shank diameter: 1/4 inch <br>Max cutting depth: 1/2 inch <br>Cutting thick: 5/64", 3/32", 1/8", 5/32", 3/16", 1/4" <br>Bearing Diameter: 7/8" <br>Material: alloy steel <br><br><b>Note: </b> <br>The slot router bit is NOT big enough to make a deep cut into the wood. <br>The blade is thin and not suitable for cutting high hardness wood. <br>The router bit must be fully inserted and tightened. <br><br><b>Package Included: </b> <br>Slot Cutter Router Bit Set - 6 sizes