RingMaster crimp tools are used with copper crimp rings to secure brass or poly alloy barbed insert PEX fittings in PEX tubing. 3/8", 1/2", and 3/4" tools have 15" handles and 1" tool has 19" handles to provide more leverage to secure crimp rings onto tubing and fittings. Tools are available in 3/8" to 1". No. WPRM06-15PB: Overall Length: 15", Crimp Ring Size: 3/8", Material: Steel, Pkg Qty: 1, Package Type: Box No. WPRM12-15PB: Overall Length: 15", Crimp Ring Size: 3/4", Material: Steel, Pkg Qty: 1, Package Type: Box No. WPRM16-19PB: Overall Length: 19", Crimp Ring Size: 1", Material: Steel, Pkg Qty: 1, Package Type: Box