The nipple extractors and the socket are made of CR-MO steel. 1.5" tub drain extractor made of high-quality Cr Stainless Steel and AISI/SAE/ASTM standard steel number 5140 - 40Cr. When the old, broken, rusted, or stubborn drain assembly has corroded and is otherwise unmovable, this tub drain extractor will break it loose to remove the drain assembly.
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