The RH Jaw Kit 89mm TC (OEM Part No. 3716542980) is a mechanical spare part designed for rock drill chuck clamping applications. Manufactured from alloy steel, the jaw kit provides a secure gripping function within the drilling head assembly, helping hold and position drilling components during operation. This replacement component is suitable for maintenance and repair of drilling equipment where reliable clamping performance is required. The 3716542980 RH Jaw Kit 89mm TC offers a practical aftermarket solution for replacing worn or damaged chuck components and supporting stable drilling operations in demanding mining environments.