The JVC258A is a cooler made exclusively from aluminum whose fins have been created using skived fin technology. Skiving is cutting the material off in thin layer just like planing timber. The cutting tool and the feed rate control the thickness and pitch of the fins. The skiving heatsink fin has one concave surface and another mirror-like finish surface, and the results in about 50 ~ 70 % reduction in the original length. The fins have an improved thermal conductivity, since the fins are part of the base plate and were not added include adhesive, welding, soldering and brazing.