The M-SR-3E Optical Pedestal Pillar Extension is 38.1 mm diameter and is used to extend height of an SR-Z pedestal pillar by 76.2 mm. It has M6 threaded holes at each end and a cross-drilled hole to assist in tightening. It can be combined with a SR-B pedestal base for a non-magnetic pedestal base configuration.

M-SR-3E光学基座柱的延伸直径为38.1 mm,用于将SR-Z基座柱的高度扩展76.2 mm。它的两端各有M6螺纹孔和一个交叉钻孔,以帮助收紧。它可以与SR-B底座组合用于非磁性底座配置。