minetest.override_item("", {
wield_scale = {x=1,y=1,z=2.5},
tool_capabilities = {
max_drop_level = 0,
groupcaps = {
takable = { times = { [1] = 0, [2] = 0, [3] = 0 } },
punchdig = { times = { [1] = 0, [2] = 0, [3] = 0 } },
},
}
})