High Performance Carbide This popular tip is great for wood and metal engraving. Use for undercuts on wood. Great for casting shadows wile releif carving on all surfaces. These are a must for every engraver. Great for inlay.  Generally turned on its side for fine detail. Use with the cast ivory inlay process. 2011 tip size ,040inch (1.02mm),  2031 tip size .025inch (.63mm)  2032 tip size .070inch (1.77mm)