hold grips

One grip per kind of thing held, not per item. A pistol and an SMG are held the same way, and so are a dagger and a long sword, so where the hand holds an item is set for its CLASS: adjust the grip on one sword and every one-handed blade follows.

class held like Tonio's weapons
pistol a handgun, one hand Pistol, SMG
rifle a long gun, two hands Assault Rifle
heavy on the shoulder Rocket Launcher
melee1h a blade, one hand Dagger, Short Sword, Long Sword, Plasma Blade
melee2h a long blade or a pole, two hands Hand and a Half, Spear
bow a bow
shield on the forearm Buckler
import { holdClassOf, holdGrip } from 'tosijs-3d'

holdClassOf('Long Sword') // 'melee1h'
holdGrip('Long Sword') // { x, y, z, rx, ry, rz, scale }: the class's default
holdGrip('Long Sword', { melee1h: { ry: 170 } }) // with your adjustment

A grip is the item's grip point and turn in the hand's socket frame (metres and degrees; see character-builder's Hold). An item not in the table is held as a pistol; pass your own table as classes to name a library's. Only the pistol and melee1h defaults were placed by hand; the others start from the nearest of those two until someone places them.

Pure: no DOM, no Babylon.