Crucifixion was Never Done by Nailing through the Hands

بِسۡمِ ٱللهِ ٱلرَّحۡمَـٰنِ ٱلرَّحِيمِ

The Gospel according to Luke states the following: 

Luke 24:39, 40

³⁹ “Look at my hands and my feet, to be assured that it is myself; touch me, and look; a spirit has not flesh and bones, as you see that I have.”  ⁴⁰ And as he spoke thus, he shewed them his hands and his feet. 

³⁹ ἴδετε τὰς χεῖράς μου καὶ τοὺς πόδας μου, ὅτι ἐγώ εἰμι αὐτός: ψηλαφήσατέ με καὶ ἴδετε, ὅτι πνεῦμα σάρκα καὶ ὀστέα οὐκ ἔχει καθὼς ἐμὲ θεωρεῖτε ἔχοντα.  ⁴⁰ καὶ τοῦτο εἰπὼν ἔδειξεν αὐτοῖς τὰς χεῖρας καὶ τοὺς πόδας 

³⁹ videte manus meas, et pedes, quia ego ipse sum; palpate et videte, quia spiritus carnem et ossa non habet, sicut me videtis habere.  ⁴⁰ Et cum hoc dixisset, ostendit eis manus et pedes. 

In the passage above, Jesus (a.s.) offered his hands and feet to Apostles and the brethren to prove that it was indeed him, returned from the dead, with the marks of crucifixion.  The problem, here, is that in crucifixion the nails never driven through the hands because the bones were too weak to hold the body.  The nails were always driven through the wrists.  It could be argued that χεῖράς, (cheiras) can, in exceptional occasions, include the wrists, but in the sixty or so times this word, and versions of it have appeared, it has been specific to the hands.  That has been the understanding of the Christians.