Clamping UNT ER11-A ER16-A ER20-A / Collet ER16 size: diameter 5mm ER11 size: 3mm for CNC cutting machine ContactAlice WangTel/WhatsApp/Wechat+86 18660396497 We have CNC router cutters in stock, good quality and high precision.Various cutter tools for engraving machines, suitable for wood flat plate engraving , wood panel furniture carving, wood art murals, wood cabinet doors carving. 1). ER25UM ER32UM Tool holder 2). one spiral flute bits milling cutter: φ3.175mm×1.5mm×8mm, φ3.175mm×32mm, ...