Cnc Flattening Slotting Bottom Cleaning Router Bit, 1/2 Shank, 2-1/2 Inch This is a newly designed woodworking tool set with 1/2 inch Shank, 2-1/2 inch cutting diameter and 1/2 inch cutting length, which can be used for cleaning, grooving and engraving,suitable for CNC, desktop and hand-held woodworking routers Newly designed high-quality plug-in alloy YJ30 blade, size 1/2"*1/2", can easily cut soft aluminum, hardwood, softwood, multi-layer wood board, MDF, acrylic and other soft materials 42CR material, HRC 48, black titanium anti-rust electroplating treatment on the surface, runout accuracy 0.05, several times longer life than ordinary 45# steel. The kit includes 4PCS square blades, 2PCS R4 round blades,1/2" to 1/4" Router Collet High-quality after-sales service, if you have any questions during use, please email us and we will reply within 12 hours.