This Combination will give you a replacement carbide inserts for most popular Different shapes Size woodturning tools Sizes and shapes:square (11x11x2.0mm-R50),Round(12mm diameter),Diamond (28x10mm with shape point) With a standard countersink and a 30 or 35 degree cutting angle,these insert can remove a large amount of material very quickly All carbide cutter inserts supplied with screws and well packed with a nice container Box The perfect grade of carbide provides the best combination of the sharpness and durability,Polished to a mirror for smoother cutting and longer tool life. Color:silver Material:Carbide Package Contents: 1* R6 round blade 12mm 1* square blade 11*11*2mm 1* diamond blade 28*10mm 3* screw Only the above package content, other products are not included. Note: Light 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.