BOSTITCH SX1838K 18-Gauge Narrow-Crown Stapler TOOL-FREE SELECTABLE TRIGGER SYSTEM: For sequential or contact operation. DRIVES: 18 GA 7/32" Narrow Crown Staples DIAL-A-DEPTH(TM) CONTROL: For precise countersinking of staples. LOW NAIL LOCKOUT: Prevents dry firing. KIT INCLUDES: Finish Stapler, 1/4" Air Fitting, Sample Fasteners, and Carrying Case.