... diamond utilizing a hard matrix compound on the face of the bit. Surface-Set Diamond Bits are set with a singular layer of natural ... synthetic diamond utilizing a hard matrix compound on the face of the bit. The diamond set design ensures sufficient overlap to prevent premature wear ... ,TNW,ATW,BTW,NTW,NXD3,AX,NX,NXC,AXT,T6H,4 9/16,NWD4,412F,SK6L146,TT46,TB56,TS116,CHD101All Chinese ...