■ SHARPENING
Affordable sharpening-stone kit delivers
MY SHARPENING STONES HAVE EVOLVED STEPWISE since I began woodworking. After a few weeks of using sandpaper, I used oilstones for a few years until I discovered waterstones. Now, Zen-Wu Toolworks’ ZenSharp starter kit has taken me forward by a huge leap. The system cuts fast, is super convenient, and leaves a great edge.
The ZenSharp kit includes four thin, magnetic cards—three diamond cards and one charged strop—which affix to a stout, mostly nonslip base. The diamond cards are coarse, medium, and fine, which Zen-Wu says are 45μm (i.e., 45 micrometers), 20μm, and 9μm, respectively. The cards measure about 3 in. by 7 ⅞ in. and, according to Zen-Wu, are flat to within 0.015 mm. A slotted maple block to hold the cards is…