1. Material: cemented carbide 2. Type: angle milling cutter 3. Purpose: used for wood grooving 4. Strong and durable, not easy to deform 5. Small and convenient, easy to carry 6. Diameter of handle: 6.35 mm 7. Specifications: 1/4x1''; 1/4x7/8''; 1/4x3/4''; 1/4x3/8'' 8. Weight: 140 grams