Breaker Bar Adapter 1/5 to 3/8

This breaker bar adapter allows you to connect 3/8 socket wrench to your 1/5 breaker bar. I use it for loosing spark plug. Print it with PETG or PLA with 100% infill. The adapter comes out very tough. Enough to handle DIY auto mechanic jobs. It save you $20 to purchase a metal adapter. It's for DIY project not professional jobs.