flat bottom lockpick filing block v2

for filing of homemade lockpicks metal blanks. specifically if your shank is set up like an ssdev style hooks, or all the way to the bottom of the pick blank. i have another version if your shank projects from the center of the blank that removes portions of the risers so it doesnt block your blank from being clamped correctly.
after you grind your shape and need to file more precisely, i designed this block to screw down to a 1/2" piece of plywood. you then use whatever side of the block has the riser closest to the profile of your pick shaft, then use a spring loaded scissor clamp to hold into place while leaving both hands available to file and sand your picks to final shape. each side has a slightly different size riser, and
i got tired of repositioning my pick blank over and over in a traditional vise, so i came up with this. saves time, easier to reposition, can flip from side to side or twist from top to bottom easily.

the square cutout in the middle was literally just to s