This pack of 10 multi-sanding sheets of 40 grit have a perforated tear off delta sheet for detail sanding (102 x 62mm, 93mm). They are made from aluminium oxide that is resin bonded to provide improved grain adhesion, anti-static qualities and long-lasting performance. The heavy-duty E-Weight backing paper makes the sanding sheet more durable - able to withstand the toughest jobs. The hook and loop backing offers decent adhesion to facilitate the fast changing of sanding sheets. The 11 pre-punched 8mm holes help eliminate clogging and improve the dust extraction. Ideal for sanding and finishing wood, metal, aluminium alloy, painted surfaces, plastic and fillers. Compatible with most multi sanders with 102 x 62mm, 93mm hook and loop backing pads including Stock No. 57681.