FLEX FX4321-Z - 16Ga Straight Finish Nailer Tool Only
FLEX FX4321-Z - 16Ga Straight Finish Nailer Tool Only
Usually 1–2 business days in Ontario, 3–8 elsewhere in Canada. Delivery times are estimates.
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Power through moulding and trim installation with the FLEX 24V Brushless 16Ga Straight Finish Nailer. This cordless finish nailer delivers high-speed power by driving up to 3 nails per second with zero ramp up time. It drives up to 1,500 nails on a single charge with a 2.5Ah lithium-ion battery (sold separately) for extended runtime. The nail gun features an ergonomic quick depth adjustment lever to easily set the ideal nailing depth when driving fasteners, and its triple LED light delivers shadow-free illumination for better visibility in dark work areas. The cordless nail gun toggles between bump and sequential firing modes and has a nail indicator to easily see how many nails remain in the magazine. Dry-fire lockout avoids blank firing and damage to your work when the nail supply is exhausted. Tool-free jam clearance allows you to quickly clear jammed nails without tools for maximum efficiency when you’re on the job. The cordless nailer is compact and lightweight to conquer tight spaces with minimal fatigue. Its heavy-duty belt clip can be mounted on either side of the tool and features a lead-in profile. The finish nailer accepts 3/4-inch to 2-1/2-inch 16-gauge fasteners. This cordless nailer delivers the FLEX Advantage of unmatched battery power, runtime, and fast charging (batteries and chargers sold separately). It’s all protected by the FLEX Limited Lifetime Warranty when registered within 30 days of purchase at registermyFLEX.com through December 31, 2025.
Features
- THE FLEX ADVANTAGE - 20% more power with 24V lithium, 25% longer runtime with THERMA-TECH™ heat management, up to 50% faster charging with high-power, dual fan chargers
- EXTENDED RUNTIME - Drives up to 1,500 nails on a single charge with a 2.5Ah battery (sold separately)
- HIGH-SPEED POWER - Drives up to 3 nails per second with zero ramp up time
- QUICK DEPTH ADJUSTMENT LEVER - Ergonomic lever easily sets ideal nailing depth
- TRIPLE LED LIGHT - Lights up dark work areas with shadow-free illumination
- COMPACT AND LIGHTWEIGHT - Conquers tight spaces and minimizes fatigue
- DRY FIRE LOCKOUT - Eliminates blank firing after nail supply exhausted
- TOOL-FREE JAM CLEARANCE - Clears jammed nails quickly for maximum efficiency when you’re on the job
- FLEX 24V CROSS-COMPATIBILITY - Compatible with all FLEX 24V batteries, chargers, and tools (batteries and chargers sold separately)
- FLEX LIMITED LIFETIME WARRANTY - Register your new FLEX tool, battery, or charger within 30 days of purchase through December 31, 2025 to receive a limited lifetime warranty
- THE FLEX ADVANTAGE - 20% more power with 24V lithium, 25% longer runtime with THERMA-TECH™ heat management, up to 50% faster charging with high-power, dual fan chargers
- EXTENDED RUNTIME - Drives up to 1,500 nails on a single charge with a 2.5Ah battery (sold separately)
- HIGH-SPEED POWER - Drives up to 3 nails per second with zero ramp up time
- QUICK DEPTH ADJUSTMENT LEVER - Ergonomic lever easily sets ideal nailing depth
- TRIPLE LED LIGHT - Lights up dark work areas with shadow-free illumination
- COMPACT AND LIGHTWEIGHT - Conquers tight spaces and minimizes fatigue
- DRY FIRE LOCKOUT - Eliminates blank firing after nail supply exhausted
- TOOL-FREE JAM CLEARANCE - Clears jammed nails quickly for maximum efficiency when you’re on the job
Includes
- (1) 16Ga Straight Nailer [FX4321]
- (1) Belt Clip
- (3) No-mar Tip
Shipping & Returns
Shipping & Returns
Free Shipping Canada Wide* on Orders Over $149
Eligible items ship free on orders over $149 (before tax).
Free Shipping Policy Restrictions
Any single item over 50 lb or longer than 48 in. ships at a calculated carrier rate, shown at checkout. The other eligible items in your order still ship free. Orders to the Northwest Territories, Yukon and Nunavut, and to a few remote postal areas (codes starting A0K, A0P, A2V, G0G, J0M, R0B or V0T), are not eligible for free shipping and are charged carrier rates at checkout. *Our free shipping policy is subject to change without notice.
How long will it take to get my order?
Typical delivery times after your order ships: 1–2 business days in Ontario; 3–5 in Quebec, the Atlantic provinces (NS, NB, PE) and the Prairies; 5–8 in BC and Newfoundland & Labrador. Expedited shipping is available at extra cost on request.
Most in-stock orders placed by 12:00 PM ET (Monday–Friday) ship the same day. Orders placed after 12:00 PM ET, on weekends or on holidays ship the next business day.
Large, overweight and LTL freight orders may need 1 or more extra business days to prepare.
What shipping carriers do you use?
Most orders are shipped courier via Purolator, UPS, or Canada Post. We will use other carriers at our own descretion depending on Product size and weight.
Do you ship overseas?
We are not currently shipping to the USA. We are currently mainly shipping within Canada, and we are slowly adding Other Countries. Please Contact us if you are unable to Checkout. See more out International Orders HERE
I only received part of my order, where is the rest?
Your order may ship in more than one package depending on the quantity or size of the products purchased. Also, items in your order may ship from either of our 2 locations and arrive in separate deliveries.
Sometimes we place smaller items from your order inside of one box to save on shipping so always open all boxes to confirm what you have recieved.
Can I return my product?
Returns and exchanges follow the manufacturer's satisfaction guarantee for each brand. Please contact us before sending anything back, and we will tell you where to send it.
If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping.
You pay the shipping cost of returning an item, or you can bring it to either of our stores.
See our Returns Policy and Warranty Information for details.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Discover more in our FAQ
Shoot our team an email & we’ll get back to you ASAP
How fast will my order ship?
How fast will my order ship?
Most in-stock orders placed before 12 PM ET (Mon–Fri) ship the same day. Usually 1–2 business days in Ontario, 3–8 elsewhere in Canada. Delivery times are estimates. You will get a tracking email once your order ships.
Do you ship internationally?
Do you ship internationally?
We mainly ship within Canada and are not currently shipping to the USA. Please contact us about other international orders.
What is your return policy?
What is your return policy?
Returns and exchanges follow the manufacturer's satisfaction guarantee. Please contact us before sending anything back. If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping. You pay return shipping, or you can bring the item to either of our stores. See our Returns Policy and Warranty Information.
