This thing fits onto the 5mm square valve stem on my 10ft^3 acetylene tank. My tank had no knob which seems rather common on the smaller tanks and I grew tired of fiddling with the adjustable wrench every time I needed to use the torch. I finally had enough and designed this knob. This is the second iteration as the first had no filleted edges and was uncomfortable to grasp.
| Acetylene_Tank_Knob.stl.stl | 2.4MB |
