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🛠️ Punch Perfect Every Time — Because Your Work Deserves Precision
The Klein Tools 53728SEN Knockout Punch Set is a professional-grade, 1/2-inch manual punch designed to cut clean holes in up to 10-gauge mild steel and other materials. Featuring an optimized design that reduces wrench effort and a split slug for easy removal, this lightweight, black-finished tool embodies over 160 years of American family craftsmanship trusted by professionals.












| ASIN | B008KC4308 |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Black |
| Colour | Black |
| Country Of Origin | Mexico |
| Customer Reviews | 4.6 out of 5 stars 153 Reviews |
| Global Trade Identification Number | 00092644537462 |
| Hole Count | 1 |
| Hole count | 1 |
| Included Components | 53728SEN |
| Item Type Name | Klein Tools 53728SEN Knockout Punch Set, 1/2-Inch |
| Item Weight | 7.2 Ounces |
| Item weight | 7.2 Ounces |
| Manufacturer | KLEIN TOOLS |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model | 53728-SEN |
| Operation Mode | Manual |
| Operation mode | Manual |
| Part Number | 53728SEN |
| Pin Hole Diameter | 0.5 Inches |
| Sheet Count | 10 |
| UPC | 092644537462 |
| Unit Count | 1 Count |
C**X
Herramienta para cortes limpios
Con un buen huso esta herramienta puede durar suficiente
O**N
Très performant
Outil de très bonne qualité
Q**R
Excellent tool, but the description is missing important size info
These tools work well, but be aware the sizes listed are not the actual diameters of the holes they make. They make "trade size" knockouts for 1/2" and 3/4" conduit fittings (well known to electricians). Also, these tools require "pilot holes", which are smaller holes drilled through the center of desired larger hole. A "draw bolt" runs through the pilot hole to guide the punch. Make sure to keep the threads on the draw bolt well cleaned and lubricated since they shoulder a lot of force. I just did a couple test punches and measured with calipers: The 1/2" punch (53728SEN) needs a 3/8" pilot hole, and makes a 7/8" (0.885", 22.5mm) hole. The 3/4" punch (53727SEN) needs a 3/4" pilot hole, and makes a 1-3/32" (1.095", 27.8mm) hole. The description really should include this information.
G**Z
💪
Es Excelente producto
J**O
resistente
la herramienta tiene muy buena resistencia y facil de usar
Trustpilot
1 week ago
2 days ago