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The 3M Hookit 521U 150mm 36E Multihole Blue Abrasive Disc is engineered for efficient sanding and surface preparation. Featuring a 36E grit and a durable blue abrasive layer, this disc excels at primer sanding, sanding filler, putty, and other surface treatments. Designed with the Hookit multi-hole system, it ensures excellent dust extraction and longer disc life. With a 150mm diameter, it fits standard sanding tools perfectly, making it ideal for professional and DIY applications. Trust the 521U series disc for smooth, consistent results every time. Part number 7100363494 confirms genuine 3M quality.
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