I'm looking at an OKADA GMC654 to replace my Bridgeport Interact 2 Series 2 cnc machine. The Okada is a graphite mill but I'm wondering if it will handle mild and hardend steel as well? The speed range of this thing is 3000-25000 rpm. The machine I can get for around 25k I'm just wondering if this is a good deal or I should keep looking? I mostly mill mild steel and some aluminum. any help or experience you can offer would be greatly appreciated. thanks