Feature:* This product is specially designed for trimming after edge banding, 4-teeth make trimming more rounded and smooth.* R1 fits 1mm thickness or less.* R2 fits 1mm-2mm thickness.* R3 fits 2-3mm thickness.* Tungsten steel, stable and durable to use. Specification:* Material: 45# steel * Color: Blue * Size: R1, R2, R3 (optional)* Shank Diameter: 1/4" (6.35mm)* Bearing Diameter: 20*6mm * Weight: Approx. 60-75g * Quantity: 1 PcPackage Contents:1 * Trimming CutterNotes:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.