If you cable cutter doesn't have a crimper built in, needle nose pliers work fine. If you use a wire cutter you will cut / destroy the end cap

Take it you are talking about inners, as the outer have ferrules. The ferrules shouldn't need to be crimped, you should get specific ferrules when you purchase the outer cable (brake 5mm/ gear 4/4.5mm)

For inners they can both use the same end spec end cap.