The FLEX FX4511-1A 1/4" Narrow Crown Stapler Kit gives you cordless stapling power for subfloor installs and tight spaces—no hoses, no compressors, just pure FLEX freedom.

With a brushless 18Ga driver, a 2.5Ah battery, and a fast 160W charger, this kit keeps you moving from start to finish without constant recharges.

Key Features & Design

• Power & speed — 24V Brushless motor drives up to 3 staples per second with zero ramp up time, delivering high-speed power when you need it.
• Long runtime — Drives up to 2,200 staples on a single charge with a 2.5Ah battery.
• Depth control — Ergonomic quick depth adjustment lever plus a depth indicator for precise fastener seating.
• Bright visibility — Triple LED worklights illuminate dark work areas so you don’t miss a staple.
• Versatile firing modes — Switch between bump and sequential firing modes; dry-fire lockout protects your work when the magazine is empty.
• Intelligent indicators — Staple indicator shows how many staples remain; non-mar tips protect surfaces during operation.
• Compact, ambidextrous design — Lightweight build with a belt clip that mounts on either side and a lead-in profile for easy target alignment.
• Compatibility & warranty — FLEX 24V cross-compatibility with all FLEX 24V batteries, chargers, and tools; FLEX Limited Lifetime Warranty when registered within 30 days of purchase through December 31, 2024.

In the Box

• 1x 1/4" Narrow Crown Stapler [FX4511]
• 1x 24V 2.5Ah Lithium-Ion Battery [FX0111]
• 1x 24V 160W Fast Charger [FX0411]
• 1x Belt Clip
• 3x No-mar Tip
• 1x Soft Bag

Specs

• Illumination: Yes, Triple LED
• Pre-light: Yes
• After-glow: Yes
• Driving Depth Adjustment: Yes
• Driving Depth Indicator: Yes
• Operation Mode Switch: Yes, Press button
• Dry-Fire Lockout: Yes
• Low Nailer Indicator: Yes, Nail Scale
• Non-Mar Nose Tip: Yes
• Soft Grip: Yes
• Belt Clip: Yes
• Motor Type: Brushless
• Nailer Type: 1/4" Crown Stapler
• Driving Mechanism: Air Spring - Pre-Pressurized Cylinder
• Fastener Diameter: 18Ga
• Fastener Length: 3/8" to 1-1/2"
• Max. Firing Speed: 3 Fasteners Per Second
• Runtime: 2,200 staplers / 2.5Ah battery
• Magazine Type: Hollowed-out
• Magazine Loading Style: Bottom Load