I have used AK15A (1.25 - 8 sq), but I purchased AK 60 (14 - 60 sq) this time because of the need to crimp a thicker cable. You can easily crimp it without the power of the work which is long and handle is difficult in a narrow place. When working in a narrow place, it is expensive but compact hydraulic AKH 60N (14 ~ 60 sq) is considered good.
Until now, I used cheap tools made in China, but I was struggling due to insufficient tightening torque. The price of the tool purchased this time is several times as compared with that made in China, but we could connect perfectly with light power. Again Japanese tools are wonderful.