Diamond File PKG (3) This 7-1/8" long, lightweight diamond file has a slim, easy-to-grip plastic handle A 3-3/4" long x 3/8" wide (average) tapering, diamond-dusted surface on both sides. Thin enough to look more like a fingernail file than a tool Flexible enough for those hard-to-file surfaces The tip is cut like a flat-head screwdriver...but we wouldn't.