R25 button bit use to Drifter and Tunneling machine , R25 is one of the thread ,we produce all kinds of R25 drilling tools including : R25 coupling ,R25 button bit ,and R25 drill rod and shank rod -R25 ,the drill bit we adopt better material and alloy to make sure out quality .we control the heat treatment hardness seriously ,and keep it between 42-45HRC , this way can help the drill bit utilize better performance
If you are interested in our products Please submit your E-mail and we will get back to you as soon as possible
