They adapt quickly , hold very tight and work well. However, the maximum clamp spacing is about 2.5" which is great for something thinner. Given this limitation, there are many woodworking jobs that they work well for. It's two pliers/clips in one - one Pocket hole clip and a face clip and both do a good job.There is little movement in the bar which makes adjustment easy.To flip you unscrew both pins, flip the post around and then reattach the pins.