With Warthog Knife Sharpeners’ V-sharp Classic II, there is no advanced knowledge, assembly or complicated accessories needed. Simply take it out of the box, set it on the counter and make a slicing motion against the vertical blade guide using minimal pressure to run the edge past two angled, spring-tensioned diamond surfaces. Then it’s a matter of reversing the diamond to expose the steeling hones — a few more strokes and the blade is ready to go. This system’s advantage is that the blade is sharpened at a consistent angle with every stroke and can be altered to suit the type of knife and its main use. MSRP: $89.99. Contact: www.warthogusa.com