|Tips: Fingernail-Grind Jig|
Using the fingernail jig with the V-notch rod is a balancing act—the bottom of the jig wants to move all around and I sometimes get faceted grinds. My solution was to use an 18" (46cm) length of 3/4 (19mm-) square tubing. Using a V block, I drilled a 5⁄16" (8mm) hole. I used a 5⁄16" cap-head bolt that uses an Allen wrench. I drilled out the hex socket with a ⅜" (10mm) drill bit. A friend tack-welded the bolt, but you may use JB Weld, or even a nut to hold the bolt. I then lightly ground the sharp edges on the leg of the fingernail jig. This allows smooth movement and better control to achieve a consistent grind.
As an alternative, you could turn the V-notch bar over and drill the hole there. That way you don't need to buy a new piece of steel. Mike Moore pointed that out when I sharpened his gouge, using my new adapter bar.
~ John Kaner, Anchorage, Alaska