Feature: 1. 2 pcs combined milling cutter for the grooving of shaped arc, round, semicircle, and all kinds of arc products. 2. Use with electric edge trimmer or electric engraver (machines not included). 3. 6.35mm/ 8mm/ 12.7mm shank for option, choose according to practical needs. 4. High quality alloy steel material, hard and sharp, sturdy and High quality to use. 5. Perfect tool set for woodworking. A wonderful gift choice for carpenter. Specification: 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 High quality 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 Package List: 2 * Arc Milling Cutter