This precision outside corner scriber for use in forming outside corners on sheet vinyl, rubber base, and vinyl base.

This precision outside corner scriber for use in forming outside corners on sheet vinyl, rubber base, and vinyl base. It scribes a line on the side of the corner that remains to be trimmed, using the opposite previously trimmed side as a guide. The guide leg has a rounded end for following the contour without scratching. The guide leg is adjustable in relation to the needle to compensate for various material thicknesses, and is held in place by a knurled steel fastener. The needle height is also adjustable for various material thicknesses.