Ko-Ken KO102NA-1/4X5/16 Ratcheting Ring Wrench, Inch Sizes, 1/4 x 5/16 in
Available
The Ko-Ken 102NA is a ratcheting ring wrench available in 8 sizes. It has no reverse lever, so it ratchets in one direction. (manufacturer-stated)
Lengths are 108 to 145 mm. (manufacturer-stated)
Each model is listed in the table below with its specifications.
Where this product is used
- Tightening and loosening nuts and bolts in confined spaces where a socket will not fit
- Maintenance and repair work where a ratcheting ring end saves lifting the spanner between swings
- Workshop and on-site fastening in inch sizes
Features
- Without reverse lever (non-reversible) (manufacturer-stated)
- Sizes in inches (manufacturer-stated)
Key specifications
| Model | Size | Length | Weight |
|---|---|---|---|
| KO102NA-1/2X9/16 | 1/2 x 9/16 in | 145 mm (manufacturer-stated) | 112 g (manufacturer-stated) |
| KO102NA-1/4X5/16 | 1/4 x 5/16 in | 108 mm (manufacturer-stated) | 60 g (manufacturer-stated) |
| KO102NA-1/4X9/32 | 1/4 x 9/32 in | 108 mm (manufacturer-stated) | 60 g (manufacturer-stated) |
| KO102NA-3/8X7/16 | 3/8 x 7/16 in | 140 mm (manufacturer-stated) | 87 g (manufacturer-stated) |
| KO102NA-5/16X11/32 | 5/16 x 11/32 in | 134 mm (manufacturer-stated) | 80 g (manufacturer-stated) |
| KO102NA-5/16X3/8 | 5/16 x 3/8 in | 134 mm (manufacturer-stated) | 80 g (manufacturer-stated) |
| KO102NA-7/16X1/2 | 7/16 x 1/2 in | 145 mm (manufacturer-stated) | 112 g (manufacturer-stated) |
| KO102NA-7/32X1/4 | 7/32 x 1/4 in | 108 mm (manufacturer-stated) | 60 g (manufacturer-stated) |
Lengths and weights are manufacturer-stated (Ko-ken catalogue 2025-26).
Selecting the right option
Choose the size pair that matches your fasteners. Each wrench covers two sizes, and the length grows with the size.
Related products
Related Ko-Ken products: Ko-Ken 102NM Ratcheting Ring Wrench, Metric Sizes, Ko-Ken 103KM Reversible Ratcheting Ring Wrench, Metric Sizes, Ko-Ken 103KA Reversible Ratcheting Ring Wrench, Inch Sizes and Ko-Ken 4715, 4715S and 4715SL T-Handle Wrench, 1/2 in Drive.
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1/2 x 9/16"
Model Number: KO102NA-1/2X9/16
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1/4 x 5/16"
Model Number: KO102NA-1/4X5/16
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1/4 x 9/32"
Model Number: KO102NA-1/4X9/32
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3/8 x 7/16"
Model Number: KO102NA-3/8X7/16
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5/16 x 3/8"
Model Number: KO102NA-5/16X3/8
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5/16 x 11/32"
Model Number: KO102NA-5/16X11/32
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7/16 x 1/2"
Model Number: KO102NA-7/16X1/2
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7/32 x 1/4"
Model Number: KO102NA-7/32X1/4
