Steel Arbor Spacer, 3/4″ Bore, 1/8″ Wide

Using a single 1/8″ arbor spacer instead of two 1/16″ pieces reduces the mating surfaces in the spindle stack by one, which lowers the cumulative runout contribution from thin spacers and simplifies stack assembly. On the 3/4″ Mini-Pro spindle, this Freeborn steel spacer provides a consistent 1/8″ step between adjacent cutters, collars, or other spacers. The precision-ground parallel faces sit flat with no tilt, keeping the cutter running aligned with the profile geometry. Bore tolerances from Freeborn match the full Mini-Pro accessory range, so the fit on the 3/4″ spindle is consistent and repeatable. A versatile small spacer used both on its own and in combination with other widths to reach target stack heights.