You can’t get one from Home Depot.
I needed to make a tapered hole for a tapered pin in a wood project. Tapered pins are efficient solutions, e. g. Morse taper, Japanese wood nails. Tools related to the their use are not readily available. I’ll make the pin but first I need the tapered hole. Travers had a good selection of tapered reamers. I didn’t need a whole set just one for one project. I ordered and it was delivered promptly. Thank you.