How to know if you have a faulty Kryptonite New York Diamond?

Since I discovered the fault in my first Kryptonite New York Diamond lock, many people have contacted me to ask how they can tell if their lock is defective or not. I’ve read comments suggesting that the extent to which the thin layer of textured, sparkly (anti grinder) material extends beyond the rubber cover of the […] The post How to know if you have a faulty Kryptonite New York Diamond?…