10pcs carbide router cutting bit blue corn end mill engraving bit for cnc pcb machinery 1.1mm

using ultra-fine grained carbide materials, with good milling and cutting performance, to ensure high efficiency. the milling groove, hole and edge of the board are clean, tidy and burr- made of carbide material, has sufficient flexural strength and wear resistance. used for pcb, smt, cnc, mold, engraving, plastic, copper, stainless steel and other hardware processing..syi