Check the listing for details. Magnetic Holding Base Universal Fine Adjustment Dial Indicator Holder NF1022. Condition: New. Listed at 55.84 USD. Fitment:Used for centering of workpieces. Helps you precisely position workpieces in lathes and mills so as to achieve easy, fast and accurate positioning symmetrical results in machining tasks Features: 1) (1) Owns a decently made Locking System with spring loaded bearing: free and flexible when not locked; rigid and firm after an easy lock with a little force. (2) Has stretchable Articulated Arms: could be used to place indicators in all required positions to meet your needs. (3) Equipped with a universal swivel clamp: for fine adjustment 2) This product is manufactured from high-quality steel, plastic and copper. The high-quality materials ensure the durability of the product. It uses specially designed brass spring bearings for reliable and safe operation 3) Universal fine adjustment, holds: 6mm,8mm,3/8", dovetail and back lug; Test indicator holder arm with 8mm diameter x 40mm long stem. The five-axis holder provides exceptional flexibility and adjustability with a 5.8” reach to suit diverse needs Package included:NF1022 universal centering indicator holder