www.partsexpress.com has a nice and cheap crimper for coax, its the one with the green handle. I am not sure what snap and seal is, if your talking about a compression connection then keep looking.

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Here's a random question that's been bugging me since I'm aware I don't know all options available... I'm helping a my brother rebuild a house and I'm helping out with a lot of the wiring work (I did ...