They are used for drilling all kinds of stones,glass,ceramics,refractory materials and reinforced concrete and so on
stone drills1, Used for : all kinds of stones , such as granite ,marble ,glass,etc .
2,Size: 8mm--200mm.M14,5/8"-11 Connection
3,Feture:fast cutting and long life
5,Payment : T/T
6,Packing : Carton
7,Delivery time : Normally 20 days
8,Delivery port: Xiamen
Various specifications are available upon your request.