Item's texture not showing up

Hi, I recently spent quite a bit of time working on a copper drill item. However, when using the drill, the texture for the drill does not show up and I'm not sure why.
Here is the code for both .cs files
---------------------------------------- CopperDrill.cs
using Terraria.ID;
using Terraria.ModLoader;

namespace EpicsTerraria.Items
{
public class...

Item's texture not showing up