Micro-Adjuster fits both the Mast-R-Fence III and TA Fence ONLY. Each full revolution is 1/64″ or you can move your fence as accurately as 1/512″. Only one Micro-Adjuster is required per fence. Includes all mounting hardware and detailed instructions. The JessEm Micro-Adjuster fits both the Mast-R-Fence III and TA Fence. Machined out of 6061 Aluminum and anodized for durability, the Micro-Adjuster is simple to use but extremely accurate. Each revolution is 1/64″ or you can move your fence every 1/512″. Many of the components are machined out of stainless steel, and each Micro-Adjuster is assembled to very strict standards. No router fence is complete without a Micro-Adjuster, so be sure to add one of these to your Mast-R-Fence III or TA Fence.