Dremel Universal Dual-Interface blades require no adapter

The unique interface fits any oscillating tool except those with Starlock interface

This variety pack of blades, (1) MM473U 1-1/4 In

high carbon steel wood fine cut blade, (1) MM474U 1-3/4 In

high carbon steel wood fine cut blade, and (1) MM476U 2-1/2 in

high carbon steel wood fine cut blade is for detailed wood cutting applications such as cutting notches into cabinets, register openings into laminate flooring, trim, baseboards, door jambs, outdoor decking material