5 Values 6MM Marble Granite CNC Diamond Engraving Bit Router Bit<br />Flat bottom engraving bits<br /><br />Material: Diamond<br />Model: 30▲ / 45▲ / 60▲ / 70▲ / 90▲<br />Shape: V-shape<br />Shank Diameter: 6mm<br />Cutting Edge Diameter: 0.4mm<br />Total Length: 40mm~45mm<br /><br />Package Include:<br />1 X Engraving Milling Cutter<br />1 X Plastic Box<br /><br />Note:<br />1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.<br />2.Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thank you!