杠杆开关式肘接式万向磁性表座（2边磁）

Kennedy® Mag Stands

With two magnetic faces and large vee. Medium duty special clamp with fine adjustment. 
Mounts: 1/4" I/D lug, dovetail stem/spigot diameter: 5/16". 
Column: 15mm dia. x 280mm. 
Magnetic pull: 50kg.
Base dimensions: 60 x 50 x 55mm.

Lever Switchable Elbow Joint 2 Mag Stand