These heads are designed to accommodate inserts form Sandvik and Tungaloy. Each head is gone through a thorough heat treatment process which is specially designed to give the material the necessary hardness and wear resistance.
Skyward Offers a full line of countering boring drill heads starting from diameter 50mm all the way upto 300mm. Special larger counter boring heads could be made on request.
Skyward could help you in designing a custom cutter which is suitable for your needs. Eg. A counter boring cutter with a pilot to achieve a given concentricity.