Superior Tool 04500 Drain Key Tub Drain Key for Unlocking and Installing Drains na Made in USA Expanding design allows the Drain Key to internally grip in a 360 Degree pattern Expands with a crescent wrench to unlock and install various types of drains Professional tool that expands in the drain with 3 knurled steel shoes, then turns the drain out using the large nut Use Superior Tool's Model# 05255 1.5" Tub Drain Extractor to Remove 1.5" Old or Stubborn Tub Drains