Crafting using Refined Iron Ingot, Refined Iron Ingot, Refined Iron Ingot, Red Cell Battery, Refined Iron Ingot, Electronic Circuit and Refined Iron Ingot, arranged in the pattern shown. Produces Basic Chainsaw.
Crafting 
Basic Chainsaw guaranteedCrafting using Diamond, Diamond, Titanium Ingot, Lithium Battery, Diamond, Basic Chainsaw and Titanium Ingot, arranged in the pattern shown. Produces Advanced Chainsaw.
Crafting 
Advanced Chainsaw guaranteed
techreborn:basic_chainsawtechreborntechrebornfabric:items/axes fabric:items/swords
Recipe JSON (1):
{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
" SS",
"SBS",
"CS "
],
"ingredients": {
"B": {
"item": "techreborn:red_cell_battery"
},
"C": {
"item": "techreborn:electronic_circuit"
},
"S": {
"item": "techreborn:refined_iron_ingot"
}
},
"conditions": [],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}