In response to demand for a high volume application outward clinch stapler, Markwell has introduced this light weight versatile industrial pneumatic outward clinch stapler based on its industry-leading L3-CS manual stapler. Featuring an easily exchangeable patented outward clinch door, fast bottom loading and minimal air usage allowing multiple tools to be operated from a smaller portable compressor, the stapler uses the full range of Markwell L3 Series heavy duty flat wire staples from ¼" to 9/16". For its intended use as an insulation stapler, the recommended staple lengths are ½" and 9/16".