Mainly for roller bit for petroleum drilling, can also for small and medium-sized button bit, DTH bit.

Mainly for  roller bit for petroleum drilling, can also for small and medium-sized button bit, DTH bit. With good wear ability and better impact toughness, it can be for percussion drilling.

 Specification:

size	Diameter(MM)	Height(MM)	Radius of sphere top(MM)
JCB1016	10.40	16.00	5.50
JCB1318	13.40	18.00	7.50
JCB1621	16.05	21.00	9.00
JCB1926	19.05	26.00	10.50

  Other size can be produced according to customers' requirements.

spherical pdc inserts