The OEM Swingline Heavy-duty Stapler SWI39002 is designed for high-capacity stapling, capable of stapling up to 160 sheets of 20 lb. paper. This stapler features durable all-metal working components for long-lasting performance. It includes an adjustable throat depth of 2-5/8 inches for flexibility and control, along with soft-touch materials for comfortable use. Compatible with Swingline series No. 353XX or No. 793XX heavy-duty staples in various sizes.