COMBO! Bundle and save! The JessEm 04500 TA Fence + brand new JessEm 04550 Micro Adjuster. FENCE: We have extruded three distinct extrusions, which are cut on our cold saw and each machined to the tightest of tolerances, ensuring you have a perfectly square router table fence with no bends or twists. At the top of each fence is an easy to read 36 scale in both imperial and metric measurements. SUB-FENCES: Extruded from 6000 series aluminum, then cut on our cold saw and machined independently to the highest degree of accuracy, then hard anodized for that long lasting durability. Both sub-fences are independently adjustable to handle different size router bits including the large raised panel bits. JOINTING OPERATIONS: No need for shimming bar or plastic shims. Outfeed fence adjusts by loosening two knobs and turning knurled dial at back of fence. Adjustment module is precisely laser engraved. Each dial revolution equals 1/16 adjustment to outfeed fence. ADJUSTMENT KNOBS: Hold down knobs are mounted in anodized aluminum mounts with a stainless steel retainer, and fixed into the retainer so the knobs stay fixed even when the fence is removed from the table. The knobs are machined from stainless steel and mounted to an aluminum anodized mount. GUARD: Adjusts height for varying sized bits, and depth when routing away from fence. Turning the hold down knob adjusts depth to cover your bit. FENCE TRACKS: Right and left tracks are extruded from 6000 series aluminum and machined on one of our CNC mills. Each track has a front and back cover to prevent dust collection buildup within the tracks.Each track has its own linear scale in both imperial and metric measurements. VACUUM PORT: The TA Fence comes with a 2-1/2 O.D. x 2-1/4 I.D., PVC 45 angle vacuum port. MICRO ADJUSTER: Brand new design, made in Canada. Stainless steel components and machined out of 6061 aluminum.