Started work on upgrading to 1.16.1. Not in a compilable state yet

remappedSrc/dan200/computercraft/shared/turtle/upgrades/TurtleAxe.java

@@ -0,0 +1,29 @@
+/*
+ * This file is part of ComputerCraft - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2019. Do not distribute without permission.
+ * Send enquiries to dratcliffe@gmail.com
+ */
+
+package dan200.computercraft.shared.turtle.upgrades;
+
+import net.minecraft.item.Item;
+import net.minecraft.util.Identifier;
+
+public class TurtleAxe extends TurtleTool
+{
+    public TurtleAxe( Identifier id, String adjective, Item item )
+    {
+        super( id, adjective, item );
+    }
+
+    public TurtleAxe( Identifier id, Item item )
+    {
+        super( id, item );
+    }
+
+    @Override
+    protected float getDamageMultiplier()
+    {
+        return 6.0f;
+    }
+}