HIGH PRECISION 1PC SER20 1/2" STEEL SEALED COLLET TIR 0.0002" / 5μm USA SELL

HIGH PRECISION 1PCS 1/2" ER20 STEEL SEALED COLLET TIR 0.0002" / 5μm CNC ER20 TOOL HOLDER. Concentricity is less than. 0002" at face and arbor (TIR). All critical surfaces precision ground. All critical surfaces are precision ground for accurate fit.