PEX cinch clamp tool kit meets the ASTM F2098 standard and includes 1pc cinch clamp tool, 1pc Allen key, 1pc calibration tool for creating connection with PEX fittings Ratcheting design reduces incorrect connections, the release button for auto-releasing the ratchet LED indicator on the tool for checking the connection is completed or not Hardened carbon steel construction for ensuring reliability and durability Allen key for adjusting the jaw gap and calibration gauge for measuring the jaw space