Bass Drum O's makes easy one of the most common tasks that drummers make aftermarket to their kit: porting the resonate side of their bass drum head. Let do a deep dive into the products from Bass Drum O (their hole cutter and the adhesive port hole rings). We'll also take you step by step on how to actually install this. We'll specifically look at these products: * Bass Drum O's 5" Port, Black: amzn.to/3UYbUN0 * The "Hole Cutter" from this combination with a 4" Port Hole": amzn.to/3USyJSf *If you purchase through the above links, I'll make a tiny commission. That'll make me super happy, as I could buy more drums!*