1. Material: cutter head YG6 alloy, cutter body 45# carbon steel, painted on the surface 2. Purpose: used for the shape of cabinet doors, doors and windows 3. Strong and durable, not easy to deform 4. Small and convenient, easy to carry 5. Shank diameter: 1/4 6. Size: 1/4x2-1/2; 1/4x2-15/16; 1/4x2-15/16 7. Weight: 3 pieces set 348 grams 8. Note: 1/4 handle is mainly used in the United States, Britain, France and other European and American countries