Self Drilling Anchor Bits

We are offering sinodrills self drilling anchor bits
anchor bits is used as a sacrificial consumable for drilling hole, there usually have tungsten carbide and steel hardened two types, through machining or casting production technology.
Thread type: r25, r32, r38, r51, t30, t40, t52, t73, t76, t103, t111, t127, t130 etc.
Bits type:
ex: hardened cross bit for loose to medium dense ground conditions
es: hardened button bit for unconsolidated rock with boulders
ec: hardened arch bit for unconsolidated soil with small boulders
ey: hardened 3 cutters bit for loose to medium dense ground conditions
exx: t.c cross bit for soft to medium rock formations
ess: button bit with t.c inserts for medium rock formations
ecc: t.c arch bit for soft to medium rock formations
eyy: t.c 3 cutters bit for soft to medium rock formations