The Micro 100 Engraving Tool Double End 16R855 is a double-ended carbide engraving tool with a 1/8" shank diameter. It has a 60 degree included angle and a 0.005" tip radius. The overall length is 2-1/2". It is designed for hand engraving in materials like plastics, soft metals, wood, and fiberglass. The double-ended design provides two cutting edges for extended tool life. This engraving tool allows for fine detail work in making inscriptions, labels, and decorative marks. It is made in the USA from solid carbide for strength and durability. The Micro 100 brand is known for high quality carbide cutting tools.