Paint Riter®+ Oily Surface Paint Marker, Black, 1 8 in Tip, Medium ORS NASCO For cutting and weeding in For cutting and weeding in most soil types Blade sharpened on three sides for side to side cutting Compatible across the range of hole saws Various shank sizes 3 8 inch or 1 2 in drills Short pilot drills and arbors require a 3 1 16 inch pilot bit Long pilot drills and arbors have a pass through shank Hex arbors with non slit jaw slots are positive drive permanent marks Xylene free paint reduces user health risks Durable metal barrel and nib reduce breakage for longer marking life Easy to grip clip cap allows for convenient pocket storage Previously known as PRO LINE® HP Paint Marker Unique paint formula resists spreading and dries quickly through oily surfaces to leave precise