Description Drillpro 20Pcs Titanium Coated Rotary File Cutters HSS Mini Burr Woodworking Milling Carving Rasp Drill BitsSpecification Brand DrillproMaterial HSS4241Shank diameter 3mmTotal length 39mmSurface treatment Titanium coatedQuantity 20PcsFeatures 1 20 Different shape bits easy to install 2 High production efficiency good processing quality finish easy to use safe and reliable reduce labor intensity non blocking 3 Suitable for wood carving root carving olive pits sharp blade durable 4 Used by Jewelers Hobbyists Craft Makers Modelers Etc 5 Chip fast high hardness suitable for wood aluminum plastic root carving and engraving6 Suitable models hanging mill electric mill drill grind and Taiwan can clamp rod diameter 3mm machine can be used Package Included 20 x Titanium coated rotary file cuttersMore Details