thanks for your feedback. it was difficult to get the right fit for exchanging and permanent attachment. But I hope it fits good enough for you.

i had difficult times too, to make the perfect fit, but then i realized not all the hex bits are the same size XD, the photo i uploaded fits fine, but i have different bit from different manufacurers that does not fit... you dont worry about that, users should resize it easily to fit the bits they have, good job and keep it up.

thanks