🔧 Unlock hidden fasteners like a pro—reach further, grip tighter, last longer!
The TEKTON 1/2 Inch Drive x 3 Inch Impact Extension (SIA21103) is a precision-engineered tool accessory designed for impact drivers. Crafted from heat-treated 6140 Chrome Vanadium steel with a corrosion-resistant manganese phosphate finish, it delivers superior strength and durability. Its 3-inch length extends your reach into tight or obstructed spaces, while the spring-loaded detent ball and four detent grooves ensure a secure, drop-resistant socket connection. Trusted by professionals and rated 4.9 stars by 447 users, this extension is a must-have for efficient, reliable fastening.
| ASIN | B08J1NKGJF |
| Bit Compatibilities | 1/2 inch |
| Brand | TEKTON |
| Brand Name | TEKTON |
| Customer Reviews | 4.9 out of 5 stars 454 Reviews |
| Drive Bit Shank Style | 1/2 inch |
| Drive System | Nutsetter |
| Drive system | Nutsetter |
| Finish Types | Corrosion-resistant Manganese,Phosphate Finish |
| Finish type | Corrosion-resistant Manganese, Phosphate Finish |
| Included Components | (1) TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 |
| Item Length | 3 Inches |
| Item Type Name | Impact Accessories |
| Item length | 3 Inches |
| Manufacturer | TEKTON |
| Manufacturer Part Number | SIA21103 |
| Material | Chrome Vanadium Steel |
| Material Type | Chrome Vanadium Steel |
| Model Number | SIA21103 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Number of pieces | 1 |
| UPC | 020209055588 |
| Unit Count | 1 Count |
B**S
Does the job I needed
Does the required task
E**L
Good tools
Nice heavy duty extension. Have used Tekton tools in the past and have had good luck with them. This extension functions as it should and I feel a quality product for a decent price.
K**Y
Good heavy duty product
Getting lots of heavy work with no issues. Great product
H**N
It’s as described
Fits really well. I haven’t have time to test this fully but I believe it will work fine. Perfect surface finish.
A**H
Great product
Works great
Trustpilot
1 month ago
3 days ago