Wrench/cutter grid line sometimes become too thin to see

[Brass_Cogs]

I would suggest setting the blend mode for the wrench lines to this, or at least something like this.

GL11.glEnable(GL_BLEND);
OpenGlHelper.glBlendFunc(GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR);
GL11.glColor4d(0.5, 0.5, 0.5, 1.0);

<Rest of rendering code>

GL11.glDisable(GL_BLEND);

This should improve visibility on dark surfaces.
Will try testing this later.