Spring clamps are great for general tuning and can be handy to have around for free hand mounts. They have a rubber sleeve over the jaws to prevent scrtaching 2" clamp will hold the drill guide block.
4" Speed clamp is handy for base repairs and other jobs around the shop. The clamps are nylon to prevent scratching.
C-Clamps... shapped like C and they clamp. Great for use with the Drill guide block and for De-Lam projects.
The clash - clampdown