Descriptions: 1/2" 1/4" shank industrial grade wood cutter dovetail router bits for wood tungsten engraving tool milling cutter. Specifications: Shank Diameter: 12.7mm(1/2") 6.35mm(1/4"). Material: Tungsten steel. Size: Diameter x Oblique angle x Cutting thickness. 1/2*1-1/2: 38.10 x 14°30' x 30. 1/2*1-1/4: 31.75 x 14°30' x 30. 1/2*1-1/8: 28.60 x 14°30' x 29. 1/2*1: 25.40 x 14°30' x 26. 1/2*7/8: 22.20 x 14°30' x 23. 1/2*3/4: 19.05 x 14° x 20. 1/2*5/8: 15.90 x 14° x 16. 1/2*1/2: 12.70 x 14° x 13. 1/2*3/8: 9.52 x 8° x 10. 1/4*7/8: 22.20 x 14°30' x 23. 1/4*3/4: 19.05 x 14° x 20. 1/4*5/8: 15.90 x 14° x 16. 1/4*1/2: 12.70 x 14° x 13. 1/4*3/8: 9.52 x 8° x 10. Features: - 1/2'' or 1/4" Shank give a smooth planed finish with a medium feed rate. They are the workhorses of the routing world used for most of the basic functions of jointing, grooving, rabbets, and are not suitable for plunge cutting. - Precise, designer profiles create smooth and detailed cuts, perfect for projects of any level of complexity. Our bits are the preferred choice of professionals and hobbyists alike. Safety Instructions: - The bladed product is not use for people under 18 years. - The item is only use for industrial cutting not hazardous article. Package Included: 1 x Router Bits