40/50mm M14 Thread Removable Flange Diamond Carving Grinding Saw Blade Disc For Marble Concrete Sto-YuJia Suitable for cutting engraving and carving , marble, concrete, sandstone Removable flange could be reused for several times, save money Can dry and wet working Hot pressed sintering technology provide longer working life Professional qualtiy, fast and smooth cutting, high efficient for multi Saw blade diameter: 40mm, 50mm Thread: M14 Thread Total Length: 40mm colour: silver + black Material: alloy steel Package Contents: 2 x Diamond Saw BIade Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.