This kit contains a great set of small diameter nuts and locks. The quality seems to be very good. I've had to unscrew the nuts half a dozen times now, and the black finish is just as polished as when I bought it. The split-piece design works very well, allowing the seat (the surface that comes into contact with the wheel) to remain stationary once tightened. This will help you get a torque much closer to correct torque the first time (always double check). They look great on darker gunmetal wheels (I have Kosei K1 TS wheels). A bit pricey but definitely the best when you need small diameter lock nuts.
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