Welding: Mig welding.<br> Chainsaw bar size: 14"-48"<br> Material: Aluminum and Steel.<br> Maximum slabbing thickness: 1/2" to 12".<br><br> Package Content<br> 1 X Portable Chainsaw Mill Planking Milling 14"-48"<br> 1 X Assembling Tool<br> 1 X User Manual<br> <br> How to use:<br> Clamps onto the chainsaw bar with no drilling required.<br> Tighten pressure bolts on to chain bar, adjust as you need.