+1 on getting a Park locking tool with the correct pin for QR or thru-axel. My philosophy on tools for anything not just bikes, is to get the best you can afford. The money you save buying cheap may cost you later in skinned knuckles or damage to whatever you are working on. If you get a cheap chain whip, you are IMHO just getting a handle and you will want to replace the chain with a section of old bike chain.