New Fine Adjustment on top with universal swivel clamp. Holds 6mm, 8mm, 3/8", dovetail and lug back. Unique central locking mechanism with Noga designed spring loaded bearing. 5 axis holder. Powerful ON/OFF magnetic base. Instant 180 lbs. fixation in any position. Fast and easy to set up gauges into required position. Black finished Arms. Includes: Zinc Cast fine adjustment, On/Off magnet, MG Long Arms.