The line effect depends on its angle on the glass. Also good for stone and shading. This bit has serrated cutting flutes that make cutting turkey and goose egg shells very easy. It is also excellent for wood and metal. The tip is .002 inch.
Care needs to be taken when inserting into the collet.
Do not push in by the tip or it will break. Use for bone, horn and texturing in wood . These points are excellent for cutting through the stencil and are most popular for glass. All of the diamonds have some application on metal and wood. Not suitable for glass but good on ostrich eggs.