How do you make Simple Metal Blade?

ItemsAmountMode
Iron Bar Quarter1
Steel Bar Quarter1
Katana Blade Shard1
Sword Blade Shard1
Simple Sword Blade Shard1
Kitchen Knife Blade1
Charcoal, Wood Charcoal, Coke1
Ball-peen Hammer, Claw Hammer, Stone Hammer, Smithing Hammer1keep
Metalworking Pliers, Vise Grips1keep
Tongs1keep
Simple Wooden Tongs, Kitchen Tongs1keep

Produces

Simple Metal Blade1

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