... M12,M16,M20 New Design High quality Indexing plungers with new design Material:Knob Black Technopolymer, Steel-Hardened ... the Withdrawn PositionLocking Style - Steel - MetricOur Plunger is with good quality and competitive price. SANKQ specialized in manufacturing ... indicators, indicators, bakelite handle and knob, lobe ball knobs with brass insert, long knobs,adjustable handle , zinc alloy adjustable ...