3/8 in drive 10 mm socket, 12-point, deep, 63.5 mm long

socket

Use it

(import "parts/hand-tool/HT-SOCKET-3-8-10-DEEP-12P.ik" as p)

In a design on ink: ask your agent for it by name, or by what it must be.

Frame of reference

Fastener mouth z=0; square-drive mouth z=length; axis +z; hex flat normal +x.