Sometimes Kreg products can (IMHO) be overpriced - this product isn't one of them. I bought this dust collection accessory for the obvious reason and it works really well when connected to the K4 attachment and a shop vacuum. It doesn't pick up all the sawdust down to the last crumb, but it's enough to justify the purchase price. If I use a slower feed when drilling holes, more dirt is collected. I suspect that using a new drill or sharpening my current (well used) one might improve the performance of this collector (finer dust) as well.
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