Pen Sander PS 12 sands linearly where space is at a premium, This superfine sander with linear sanding motion (versus rotary or orbital) operates at 8,000 strokes per minute with a 3/32"" (2, 5 mm) stroke, Superfine finishing of wooden, plastic or metal surfaces can be done in less time hands can do without big efforts, It is ideal for surfaces, slots and tight corners, Included are four sanding attachments with straight shanks and four with angled shanks (four different shapes per shank style) as well as three sheets of pre-profiled self-adhesive sanding pads, The sheets are 180, 240 and 400 grit with 5 of each shape per sheet, Note: An AC adapter of at least 12-18V DC and 1, 0 A is required, We recommend PROXXON power supplies NG 2/SNO 38706 or NG 5/E NO 38704, The electronic speed control on the NG 5/E unit allows the selection of different speeds for different applications and materials, Sandpaper for the PS 12, Three sheets, each with 20 pads, pre-profiled for the different shank shapes, (5 each of the four shapes, self-adhesive) NO 28822 180 grit, NO 28824 240 grit, SKU: PXTECH254