Coupling sleeve - High Carbon Steel Drilling tools from Atlas Copco

（1）Thread：R22,R25, R28, R32;

（2）Length (L): 150mm-250mm;

（3）Function: Coupling sleeve, Adapter Coupling;

（4）Type: Full-bridge, Semi-bridge;

（5）Package: In wooden case or in carton;

（6）Supply ability:10000pcs/month;

（7）Delivery time: 7-10days;

Coupling sleeve have different length , we can according to require of customer to produce ,and the products are mainly used to transmit impact energy into the drill string , CNC processing procedure ensure the perfect match of thread ,Reliable quality from precise supervision of heat-treatment, the products are of great endurance and dependability.