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  • Most often used with orbital sanders and other types of profile and finishing sanders.
  • Square or triangular in shape, depending on the type of sander they are to be used with.
  • Available in a variety of grits and weights.
  • One style is PSA. PSA stands for pressure sensitive adhesive, so sandpapers of this type have a sticky backing. Generally, this type is used for sanding jobs where you will use the sandpaper until it is worn out. Not for tasks where you will be changing sandpaper frequently.
  • Another style is hook and loop, which attaches to the sander like Velcro. It is removable and good for jobs that require frequent changing of the sandpaper.
  • Another, more economical alternative to PSA and hook and loop sandpaper are sanders that use clamps to hold the sandpaper to the sanding pad. In this style, standard sheet sandpaper can be used. A paper punch tool is usually included with the sander to poke the holes in the paper to aid in dust extraction.

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