WATTS PEX WPCCT-6 Ratcheting C-Inch Clamp Easy One-Hand Tool for 3/8-Inch 1/2-Inch and 1-Inch Stainless Steel C-Inch Clamps Ratcheting CInch Tool is designed to fasten Watts stainless steel cInch clamps 3/8-Inch to 1-Inch Simple installation requires only one hand Ratcheting feature ensures a complete cInch by release only after the ring is secure Helpful when connecting PEX pipe in close areas with minimal space Meets ASTM 2098 specification