Innovation For The Trades€. Expand PEX Type-A tubing from 3/8 in. to 1 in. with the 20V MAX* Cordless 1in. PEX Expander, the fastest PEX Expander on the market.** It‚¬„s proudly made in the USA with global materials. An automatic rotating head helps to ensure even expansion. The bright onboard LED work light and full trigger actuation make it an excellent tool in dimly lit, tight spaces. Carry this tool conveniently around the jobsite with a dual-sided hang hook and belt hook. Rubber overmold on the handle provides an ergonomic grip to keep you comfortable all day. This tool uses DEWALT® PEX Heads, and it is compatible with leading competitive PEX heads.