Shop Vac 2.5 To 1.25 Adapter
A one-piece dust-extraction adapter that joins a 2-1/2 in (63.5 mm) shop-vac hose to a 1-1/4 in (31.75 mm) power-tool dust port — a 64.0 mm socket with an internal 45° stop shoulder steps down through a tapered cone to a 31.4→30.6 mm friction spigot with a seating flange. 79 mm tall, 78 mm across the three grip ribs, with a 3.4 mm M4 self-tapping screw hole through one rib so the hose can be locked instead of pulling off mid-cut.
garage shop-vac dust-collection hose-adapter