We can supply all kind of conical bits for foundation and construction. Such as HQ305017AL (B47K17) ; HQ305019 (B47K19) ; HQ305022AL (B47K22) ; HQ253312AK (C31HD) etc. . also we can supply all the holders such asHQ10 (C10) ; HQ30 (DV25) . Hq43 (B43H) , HQ85 / 2 (B85 / 2) etc. we assue we can offer you best quality and very good price to meet your requests