Straight Top Groover — 3/4″ Width, Pro-Line (1-1/4″ Bore)

Cuts a flat-bottomed 3/4″ groove — sized to house nominal 3/4″ stock in a single pass, which makes it the common choice for shelf housings and partition joints — and does two more jobs besides: run it against the fence to cut a rabbet, or fit a 4″ diameter rub bearing and it becomes a flush trim cutter following a template or a previously worked edge. The straight top grind leaves a square groove with clean corners — nothing is rounded, coved or ogee’d. Freeborn indexes the series by groove width and the trailing SKU number is that width in sixteenths, so 012 is 3/4″, 016 is 1″ and 032 is 2″. Pro-Line body: 1-1/4″ bore, 4″ diameter, three wings, counterclockwise, in carbide or T-Alloy — carbide for general production, T-Alloy where abrasive stock or long runs justify the premium. The Mini-Pro counterpart is MC-62-012.