Ko-Ken KO4771Z Z-Series Universal Joint, 1/2 in drive
Available
Ko-Ken 2771Z, 3771Z and 4771Z are Z-series universal joints with square drives of 1/4 in, 3/8 in and 1/2 in. (manufacturer-stated)
Lengths are 29.9, 42.5 and 55.8 mm. (manufacturer-stated)
Each model is listed in the table below with its specifications.
Where this product is used
- Working at an angle to the fastener where a straight drive will not reach
- Reaching fasteners offset from the handle in confined engine bays and machinery
- Maintenance and repair work with square drive sockets
Features
- Square drives: 1/4 in, 3/8 in and 1/2 in (manufacturer-stated)
- Z-series model
Key specifications
| Model | Drive | Length | Dimension D | Weight |
|---|---|---|---|---|
| KO2771Z | 1/4 in (manufacturer-stated) | 29.9 mm (manufacturer-stated) | 11.7 mm (manufacturer-stated) | 15 g (manufacturer-stated) |
| KO3771Z | 3/8 in (manufacturer-stated) | 42.5 mm (manufacturer-stated) | 18 mm (manufacturer-stated) | 44 g (manufacturer-stated) |
| KO4771Z | 1/2 in (manufacturer-stated) | 55.8 mm (manufacturer-stated) | 23.7 mm (manufacturer-stated) | 100 g (manufacturer-stated) |
Drive sizes, lengths and weights are manufacturer-stated (Ko-ken catalogue 2025-26).
Selecting the right option
Match the square drive to your sockets and handle.
Related products
Related Ko-Ken products: Ko-Ken 2772Z, 3772Z and 4772Z Z-Series Universal Double Joint, 1/4, 3/8 and 1/2 in Drive, Ko-Ken 2770, 2771, 3770, 3771, 6770 and 8770 Universal Joint, 1/4, 3/8, 3/4 and 1 in Drive, Ko-Ken 4770 Universal Joint, 1/2 in Drive, 62.4 mm and Ko-Ken 2763, 3763 and 4763 Wobble-Fix Extension Bar, 1/4, 3/8 and 1/2 in Drive.
Resources
Couldn't load pickup availability
Secure Checkout. We do not store credit card details
-
1/2"
Model Number: KO4771Z
-
1/4"
Model Number: KO2771Z
-
3/8"
Model Number: KO3771Z
