Most crankbaits are adorned by two unguarded treble hooks - one just below the nose, the other protruding from the tail. Hook sizes are coordinated so the bait achieves ultimate balance and the most desireable action. This means they'll graviate towards the surface if a retrieve is slowed or float when not in motion. While there are a passel of different crankbaits on the market today, there are only four basic styles to choose from. Among them are shallow divers, medium divers, deep divers and lipless.
Most manufacturers advertise the depth ranges of individual lures on the packaging.
If this is not available, you can resort back to the bill scale discussed earlier. The shorter the bill, the shallower the lure will dive. The longer the bill, the deeper a lure is capable of diving. With all three categories covered, you'll be able to effectively fish anywhere bass live. The Color Code Modern crankbaits are sort of like modern automobiles.