Disclosed is an assembly for foot arthroplasty, including a plurality of successively larger implants (10, 20, 30, 40) and a single drill (60) each implant includes, relative to a central portion (11), a proximal pin (12, 22, 32, 42) and a distal pin (13, 23, 33, 43) that is shorter than the proximal pin, the pins and the drill being tapered by 2 to 6°.