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I think it might be sampling
A slide hammer puller. A slide hammer puller can be used to pulll a bearing from a bored hole that is pressed into. They are adjustable with either a collet or puller jaws. To remove the bearing, slide the weight back hard until it hits the flat area on the rear of the puller.
Cohesive. This means that the water is attracted to other particles of itself, so they stick and bead up.