2 PCS Tongue and Groove Router Bit Set T Shape Wood Milling Cutter Edge Trimmer Engraver Accessory Features: 2 pcs combined milling cutter for the grooving of shaped arc, round, semicircle, and all kinds of arc products. Use with electric edge trimmer or electric engraver (machines not included). 6.35mm/ 8mm/ 12.7mm shank for option, choose according to practical needs. High quality alloy steel material, hard and sharp, sturdy and durable to use. Perfect tool set for woodworking. A wonderful gift choice for carpenter. Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Shank: 6.35mm/ 8mm/ 12.7mm (Optional) Color: Yellow Material: Alloy Steel Package Size: 6 * 6 * 4cm / 2.36 * 2.36 * 1.57in Package Weight: 137g / 4.83oz Package List: 2 * Arc Milling Cutter