If you’ve ever struggled with leaky copper or PEX connections, you know how frustrating—and costly—plumbing mistakes can be. Whether you’re a seasoned contractor or a weekend DIYer, having the right tool makes all the difference. That’s where theIwiss IWS-1632AF Plumbing Copper Pipe Crimper Press Tube Tools come in—a compact, powerful solution trusted by professionals for fast, secure, and code-compliant pipe joints.
What Is the Iwiss IWS-1632AF Used For?
The Iwiss IWS-1632AF is a manual press tool designed specifically for crimping copper and stainless steel pipes using press-fit fittings (also known as push-to-connect or press-connect systems). It works on pipe diameters from 16mm to 32mm (approximately ½” to 1¼”), making it ideal for residential plumbing, HVAC installations, and light commercial applications.
Unlike traditional soldering or compression fittings, press-fit systems eliminate open flames, flux, and waiting time—reducing installation errors and speeding up workflow by up to 40%, according to a 2023 study by the Plumbing-Heating-Cooling Contractors Association (PHCC).
💡 Fun fact: Press-fit plumbing has been standard in Europe for over two decades and is now rapidly gaining adoption in the U.S. due to its safety and efficiency (source: Wikipedia – Press fit).
Key Features of the Iwiss IWS-1632AF
Here’s what sets this tool apart from generic crimpers:
Ergonomic Dual-Grip Design: Reduces hand fatigue during extended use.
Ratcheting Mechanism: Ensures full crimp cycle completion—no partial crimps.
Color-Coded Jaw Heads: Quick identification for 16mm, 20mm, 25mm, and 32mm pipes.
Built-in Release Lever: Allows easy jaw removal without tools.
Durable Alloy Steel Construction: Rated for 10,000+ crimps under normal conditions.
Compared to competitors like Milwaukee or Rothenberger, the Iwiss IWS-1632AF offers similar performance at nearly half the price, making it a favorite among cost-conscious contractors.
How to Use the Iwiss IWS-1632AF: Step-by-Step Guide
Follow these steps for a perfect, leak-free connection every time:
Cut the Pipe Squarely Use a pipe cutter to ensure a clean, perpendicular end. Deburr both inside and outside edges.
Insert the Press Fitting Slide the press-fit connector fully onto the pipe until it stops. Ensure no gaps are visible.
Select the Correct Jaw Match the jaw size to your pipe diameter (e.g., blue = 20mm, red = 25mm).
Position the Tool Center the jaw around the fitting. Align the tool perpendicular to the pipe.
Squeeze the Handles Apply steady pressure until the ratchet clicks and releases automatically. This ensures a full 360° crimp.
Verify the Crimp Most press fittings include a visual inspection window. If it’s closed or flush, the crimp is complete.
⚠️ Pro Tip: Always test your system with a pressure test (minimum 60 PSI for 15 minutes) before covering walls or floors.
Iwiss IWS-1632AF vs. Other Manual Press Tools
Feature
Iwiss IWS-1632AF
Generic Brand X
Milwaukee M12 Press Tool
Price
$129–$149
$75–$90
$400+ (with battery)
Max Pipe Size
32mm (1¼”)
25mm (1″)
32mm
Ratcheting Mechanism
✅ Yes
❌ No
✅ Yes
Jaw Change Speed
<10 seconds
~30 seconds
Tool-free (fast)
Warranty
1 year
30–90 days
5 years
Best For
DIY & Pros on a budget
Occasional use
High-volume contractors
While battery-powered tools offer speed, the Iwiss IWS-1632AF delivers professional results without the cost or maintenance of electronics—ideal for jobsites without power access.
Handyman Services needing a reliable, portable tool for service calls.
Apprentice Plumbers learning press-fit techniques without investing in expensive kits.
It’s not recommended for large-scale commercial projects requiring hundreds of crimps per day—opt for electric models in those cases.
Maintenance Tips to Extend Tool Life
To get 10,000+ crimps from your Iwiss tool:
Clean jaws after each use with a dry cloth to remove metal shavings.
Lubricate pivot points every 500 crimps using light machine oil (e.g., 3-in-1 oil).
Store in a dry case to prevent rust—humidity is the #1 enemy of manual tools.
Never force the release lever—wait for the ratchet to fully engage before opening.
With proper care, many users report 5+ years of daily use without issues.
FAQ Section
Q1: Can the Iwiss IWS-1632AF crimp PEX tubing?
A: No. This tool is designed for metal press-fit systems (copper, stainless steel). PEX typically uses clamp or crimp rings with different tools (e.g., cinch clamps). However, if you’re using PEX-Al-PEX (aluminum composite pipe with press fittings), then yes—it works perfectly.
Q2: Are the jaws interchangeable with other Iwiss models?
A: Yes! The IWS-1632AF uses the standard Iwiss jaw system, compatible with models like IWS-1628AF and IWS-2232AF. This saves money—you only buy new jaws when expanding your pipe range.
Q3: Does it meet plumbing code standards?
A: Absolutely. When used with certified press fittings (e.g., Viega, Uponor, or SharkBite Press), the Iwiss IWS-1632AF creates joints that comply with IPC, UPC, and NSF/ANSI 61 standards for potable water systems.
Q4: How do I know if the crimp was successful?
A: Most modern press fittings have an inspection hole or color indicator. After crimping, this hole should be fully closed or show a uniform imprint. Never guess—use a go/no-go gauge if precision is critical.
Q5: Can I use it on gas lines?
A: Only if local codes allow press-fit gas piping and you’re using gas-rated fittings. In most U.S. jurisdictions, press-fit is approved for natural gas in commercial settings but restricted in residential. Always check with your local inspector first.
Q6: Where can I buy replacement jaws?
A: Replacement jaws are available on Amazon, Home Depot, and directly from Iwiss distributors. Look for part numbers like IW-J16 (16mm) or IW-J32 (32mm).
Conclusion
The Iwiss IWS-1632AF Plumbing Copper Pipe Crimper Press Tube Tools strike the perfect balance between affordability, durability, and professional-grade performance. Whether you’re fixing a leaky faucet line or installing a whole-house repipe, this tool eliminates guesswork and delivers consistent, code-compliant results—without breaking the bank.
If you found this guide helpful, share it with a fellow DIYer or plumber on Facebook, Pinterest, or Reddit! Your share could save someone hours of frustration (and a flooded basement).
And remember: in plumbing, the right tool isn’t a luxury—it’s your best insurance against leaks, callbacks, and costly rework.
Leave a Reply