Drilltec’s ESP-S line of protectors is made from high-density polyethylene with Procadd composite material in conjunction with a heavy-duty steel shell which provides an exceptional durability while still offering corrosion protection. This product covers the full length of the pipe thread, preventing hook damage to both the pin and box ends. ESP-S also includes Drilltec’s patented Roll-Over Bumper to protect the leading edge of the pin or box, which in the case of severe impact would damage the connection.