Paper drill capacity is usually stated under specific conditions, often using ordinary paper. Coated sheets, laminated material, synthetic stock, heavy card, or tightly compressed stacks can create more heat and resistance, reducing practical capacity. Heat may cause paper chips to pack inside the hollow bit, leading to rough holes, burning, or breakage. Use the stack height, feed method, lubrication, and operating guidance specified for the machine and bit. Firm clamping and square alignment help prevent the stack from shifting. Do not force a slow or blocked bit through the material. Stop and address chip removal, sharpness, lubrication, or stack size according to the manufacturer’s instructions. Testing the actual stock before a long run establishes a safer working capacity and a cleaner result.