Mini-Pro Rub Spacer, 5.5mm x 1/2″ Tongue

This Freeborn Mini-Pro rub spacer pairs the 5.5mm metric width with the 1/2″ tongue depth, covering the metric-specification variation that calls for more tongue engagement than the 3/8″ version provides. On the cope side of the M-50/P-10 sequence, the center cutter is replaced by this spacer, keeping the spindle stack at the same height as the pattern side so the fence and collar settings carry directly across. The 5.5mm width matches European-specification center-cutter standards, and the 1/2″ depth provides the longer tongue engagement preferred for heavier stile stock or when the glue joint needs more surface area. Machined by Freeborn to close tolerances on the 3/4″ bore, this spacer delivers consistent positioning for repeatable results in metric-specification door-frame production.