Micro Adjuster Jig ? WoodArchivist
You can make your own. If you use a 3/8" x 16 bolt then one full turn is 1/16, a half turn is 1/32" and a quarter turn is 1/64". No need for the indicator, just the block and bolt, drill the hole in the block for the bolt slightly smaller than the bolt so it is a firm fit. Clamp the block to the edge of the table. KISS
You can make your own. If you use a 3/8" x 16 bolt then one full turn is 1/16, a half turn is 1/32" and a quarter turn is 1/64". No need for the indicator, just the block and bolt, drill the hole in the block for the bolt slightly smaller than the bolt so it is a firm fit. Clamp the block to the edge of the table. KISS