Milton (S-160) Pistol Grip Blow Gun with OSHA-Compliant Safety Tip DESIGN: Durable Zinc die cast, chrome-plated. OSHA-Compliant safety tip. PISTOL GRIP: Molded grip for comfort, easy handling. Simple trigger-controlled air flow. 150 MAX PSI: 1/4" national pipe thread (NPT) air inlet. 10 standard cubic feet per minute (SCFM). COMPATIBLE: Fits Milton's 6-inch extension (#122) and 10-inch extension (#123). INCLUDES: Built-in hook/loop for hanging anywhere in your home garage or shop.