So I was thinking about buying a torque wrench from Canadian Tire for changing my rims for summer and winter driving(which would save me about $80 a year), and for oil changes just to be sure I'm setting the right torque on everything. Might also come in handy if I ever change my own brakes or anything else I can do in my driveway Is it worth the investment? $100 at Canadian Tire gets you a wrench with a lifetime warranty but only a 3 month calibration warranty. I'm wondering how much a calibration costs and how often it needs to be done. I was also wondering if it's possible to make a red neck version. Hang a 20 pound weight from the end of a wrench I need some car nuts around here to talk about cars and tools with at 11