Gantry CNC Flame Plasma Anti-collision Fixture CNC Cutting Machine Holder with Proximity Switch Note:Anti-collision gun function uses 2pcs 8mm proximity switch(included); Arcing positioning requires 1 or 2pcs 8mm NPN proximity switch(Do not included,if you need ,please contact us before you place the order ) Application:It is mainly used for anti-collision gun function on gantry type CNC plasma cutting machine, and can also be used as numerical control plasma cutting arcing positioning function. Parameter:Clip lift hole diameter: 25mm Clip cutting gun default diameter: 32mm Disk outer diameter: 100mm Total length: 220mm Floor thickness: 15mm Weight: 1kg Package Including:1 x Anti-collision Fixture 2 x Proximity Switch For Anti-collision gun function(as the option you choose)