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I am in the market for some small format interchangeable core locks. I understand the pros and cons of the lock. I am having a difficult time deciding on a best keyway. A / E / F / K / WY etc. I am not trying to match up to anything just starting fresh. I see some advertised with extra thick keys although I am not sure which keyways support the extra thick keys but this appeals to me I thick the BEST brand keyways are what I want to stick with I am leaning towards 7 pin. Ok help me decide On a keyway. Is their an advantage to one keyway over another? Is my local locksmith more likely to have blanks for one over another? What’s what difference besides shape of a-e-f-h etc over the ta tb or wa wy etc?

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