Tricone bit roller cutters for core barrel,$200-600 for different sizes
Type:1.TCI single cutter
2.Milled tooth(steel tooth) single cutter
Size:6 3/4,7 1/2,8 1/2,9 7/8,12 1/4,17 1/2...
IADC:standard IADC including 111 to 837
Bearing sealed:metal sealed,rubber sealed,not sealed.
Color:blue,golden,green or as customer requirements.
Formation:soft, soft to medium hard, medium hard, hard, very hard.
Contact me for quotation! Hengji bits focus on Quality!