Like I posted earlier - he had tremendous hands.
For the life of me, I don't recall him every making any legit 1-handed catches.
I've probably seen at least 500 of Chrebet's ~ 600 career receptions. His hands were just as good as Largent's. He has hands that could make catches in a variety of fully-extended positions, including outstanding ability to keep his feet in bounds and stretch his hands out. He had hands that could hold onto a ball in fully prone position while getting hit at full force by a defensive back. Have I seen him pull a ball in with one hand? Yes, on occassion. He does not have hands the size of Michael Jordan's so he is not capable of making a catch like Mike Williams (USC) and Ron Curry (Oak) did completely with one hand and no other body part. Also (like Largent and most fundamentally sound WRs), Chrebet would always use 2 hands whenever humanly possible to catch the ball, often at the expense of his body as frequently the unused arm is used to soften the impact of hitting the ground or to ward of an opponent. A significant portion of "one-handed" catches are catches that could have also been made using both hands. Some guys fall in love with the one-handed approach because it is much more likely to make the cut for ESPN SportsCenter.