The Pro-Graad 1/4"-20 Threaded Adapter for M12 Polisher/Sander is packed as a single adapter unit designed exclusively for use with the Milwaukee M12 Polisher/Sander tool in conjunction with your existing Quick Change Disc Pad Holders, enhancing tool functionality by enabling compatibility with Quick Change Disc Pad Holders ranging from 1” to 3”. Crafted from robust carbon steel with a specialized blackening treatment, this adapter boasts exceptional durability, promising a prolonged lifespan for sustained use. Its tailored construction ensures reliable performance when paired with 1” to 3” Quick Change Style Pad Holders, amplifying the capabilities of your M12 Polisher/Sander seamlessly. By seamlessly converting the tool to a 1/4-20 male thread, this adapter facilitates the mounting of various Quick Change Disc Holder Pads, including Roloc, Roll Lock, Type R, TR, Type S, TS, TSM, and Type P styles. This expansion solves limitations posed by standard 2” diameter pads, enabling the utilization of smaller to larger (1” to 3”) diameter pads. This versatility broadens application possibilities, allowing for a more extensive range of abrasive and finishing discs on your M12 tool, ultimately unlocking enhanced potential for diverse projects with ease and efficiency.