Need a narrow crown stapler gentle enough for finish work and tough enough for daily use? The Model 1890U Underlayment Stapler brings Powernail quality and durability to a pneumatic stapler.
 
Features
• Drives 18-Gauge, narrow-crown staples, 7/8” to 1-1/2” lengths
• Features a quick jam release and a double length magazine for fewer reloads
• Lightweight and perfectly balanced
• Equipped with a non-marring nose piece to protect the workpiece
• Offers bump-fire and single fire operation
• 360° adjustable exhaust