Material: Tungsten carbide, superior abrasion resistance; Steel bits that meet the high demands of woodworking and hardware. Size: 6mm shank; Cutting diameter: 6mm/8mm/10mm/12mm/18mm. Universal: The box bit is designed for reeding, fluting, panel making and round nose groove. Feature: Use on CNC and other automatic routers as well as handheld and table-mounted portable routers; It is particularly effective for flat surfaces. This drill bit allows you to cut dovetail joints matching the precision and accuracy of drawers and furniture. 6X6 Weight: 0.03 kg 6X8 Weight: 0.03 kg 6X10 Weight: 0.031 kg 6X12 Weight: 0.034 kg 6X16 Weight: 0.038 kg 6X18 Weight: 0.04 kg Specifications: five