for Noga DG61003 Magnetic Base 176 lb. Holding Power Dial Test Indicator Holder Features: Function Serves as an auxiliary tool for general measurement; Optimize and simplify your positioning job with high working efficiency. Practical Design&Performace 1) Mega base: holders 176lbs when on 2) 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. 3) Stretchable Articulated Arms: could be used to place indicators in all required positions to meet your needs-even upside down. 4) Universal Swivel Clamp: for top fine adjustment .
eBay