SincerelyMaterial: tungsten carbide; Arbor Diameter: 1/4". Type: V-Groove and Core Router Bits Precision-machined, high-quality steel sharp blade makes clean, precise cuts on wood. Cuts all composition materials, plywood, hardwoods, and softwoods 3-Piece Box Router Bits with Diameters - 1/4", 3/8" and 1/2", 3pcs V-Groove Router Bit Set Cutting Edge (Diameter * Angle): 1/4" * 90°, 3/8 * 90°, 1/2 * 90° Box Router Bits designed for sign making and general round nose grooving. 90-degree angled V-groove cutter, ideal for veining, chamfering, and V-grooving Features: 1. Solid hardened steel body with anti-kickback design, impact resistance, high toughness. 2. Sharp edges increase work efficiency and product quality. 3. Compatible with handheld routers, tabletop routers, and CNC machines. 4. Suitable for materials: acrylic, MDF, PVC, 3D engraving and chamfering, etc. 5. An essential tool for woodworkers, wide applications for grooving, engraving, cutting, milling, etc. Specification: Material: Tungsten Carbide For use on: Router router, CNC router machine 3pcs Round Nose Router Bits Arbor Diameter: 1/4" Cutting Diameter: 1/4", 3/8" and 1/2" Cutting Length: 1/2", 25/32", 25/32" Overall Length: 1-15/16", 2-3/64", 2-1/32" 3pcs V Groove Router Bits Arbor Diameter: 1/4" Angle: 90 Degree Cutting Diameter: 1/4", 3/8" and 1/2" Cutting Length: 1/4", 3/8" and 1/2" Overall Length: 1-11/16", 1-21/32", 1-3/4" Contents: 3 x V-Groove Router Bits 3 x Round Nose Router Bits Yellow Color