Pencil grinders have interchangeable 1/8″ and 3/32″ collets. They are used to drive small mounted points, carbide burs, abrasive discs, diamond brushes, and felt bobs. Pencil grinders are used to install small radii, removing deep cutter marks on small pieces or tight areas, and diamond finishing. Light duty grinders, or pencil grinders, are available in air drive and electric with flexible shafts.
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