Ko-Ken KO6405A32 12-Point Socket, 1 in, 3/4 in Drive
Available
The Ko-Ken 6405A is a 12-point socket with a 3/4 in square drive. (manufacturer-stated)
Sizes run from 11/16 to 2-1/2 in.
Lengths are 50 to 76 mm. (manufacturer-stated)
Each model is listed in the table below with its specifications.
Where this product is used
- Turning inch nuts and bolts with a 3/4 in drive ratchet or handle
- Workshop, maintenance and assembly work on exposed fasteners
- General workshop and maintenance fastening
Features
- 3/4 in square drive (manufacturer-stated)
- 12-point (bi-hexagon) opening (manufacturer-stated)
Common specifications
| Specification | Detail |
|---|---|
| Drive | 3/4 in (manufacturer-stated) |
| Opening | 12-point (manufacturer-stated) |
Key specifications
| Model | Size | Length | Weight |
|---|---|---|---|
| KO6405A22 | 11/16 in | 50 mm (manufacturer-stated) | 178 g (manufacturer-stated) |
| KO6405A24 | 3/4 in | 50 mm (manufacturer-stated) | 179 g (manufacturer-stated) |
| KO6405A25 | 25/32 in | 50 mm (manufacturer-stated) | 185 g (manufacturer-stated) |
| KO6405A26 | 13/16 in | 50 mm (manufacturer-stated) | 185 g (manufacturer-stated) |
| KO6405A28 | 7/8 in | 50 mm (manufacturer-stated) | 187 g (manufacturer-stated) |
| KO6405A30 | 15/16 in | 50 mm (manufacturer-stated) | 200 g (manufacturer-stated) |
| KO6405A32 | 1 in | 50 mm (manufacturer-stated) | 222 g (manufacturer-stated) |
| KO6405A34 | 1-1/16 in | 53 mm (manufacturer-stated) | 254 g (manufacturer-stated) |
| KO6405A36 | 1-1/8 in | 53 mm (manufacturer-stated) | 292 g (manufacturer-stated) |
| KO6405A38 | 1-3/16 in | 55 mm (manufacturer-stated) | 301 g (manufacturer-stated) |
| KO6405A40 | 1-1/4 in | 57 mm (manufacturer-stated) | 351 g (manufacturer-stated) |
| KO6405A42 | 1-5/16 in | 57 mm (manufacturer-stated) | 384 g (manufacturer-stated) |
| KO6405A44 | 1-3/8 in | 57 mm (manufacturer-stated) | 422 g (manufacturer-stated) |
| KO6405A46 | 1-7/16 in | 59 mm (manufacturer-stated) | 484 g (manufacturer-stated) |
| KO6405A48 | 1-1/2 in | 59 mm (manufacturer-stated) | 523 g (manufacturer-stated) |
| KO6405A50 | 1-9/16 in | 59 mm (manufacturer-stated) | 550 g (manufacturer-stated) |
| KO6405A52 | 1-5/8 in | 62 mm (manufacturer-stated) | 633 g (manufacturer-stated) |
| KO6405A54 | 1-11/16 in | 62 mm (manufacturer-stated) | 659 g (manufacturer-stated) |
| KO6405A56 | 1-3/4 in | 62 mm (manufacturer-stated) | 657 g (manufacturer-stated) |
| KO6405A58 | 1-13/16 in | 68 mm (manufacturer-stated) | 791 g (manufacturer-stated) |
| KO6405A60 | 1-7/8 in | 68 mm (manufacturer-stated) | 892 g (manufacturer-stated) |
| KO6405A62 | 1-15/16 in | 68 mm (manufacturer-stated) | 870 g (manufacturer-stated) |
| KO6405A64 | 2 in | 68 mm (manufacturer-stated) | 949 g (manufacturer-stated) |
| KO6405A66 | 2-1/16 in | 72 mm (manufacturer-stated) | 983 g (manufacturer-stated) |
| KO6405A68 | 2-1/8 in | 72 mm (manufacturer-stated) | 1,040 g (manufacturer-stated) |
| KO6405A70 | 2-3/16 in | 72 mm (manufacturer-stated) | 1,092 g (manufacturer-stated) |
| KO6405A72 | 2-1/4 in | 72 mm (manufacturer-stated) | 1,169 g (manufacturer-stated) |
| KO6405A74 | 2-5/16 in | 72 mm (manufacturer-stated) | 1,344 g (manufacturer-stated) |
| KO6405A76 | 2-3/8 in | 76 mm (manufacturer-stated) | 1,402 g (manufacturer-stated) |
| KO6405A78 | 2-7/16 in | 76 mm (manufacturer-stated) | 1,420 g (manufacturer-stated) |
| KO6405A80 | 2-1/2 in | 76 mm (manufacturer-stated) | 1,497 g (manufacturer-stated) |
Lengths and weights are manufacturer-stated (Ko-ken catalogue 2025-26).
Selecting the right option
Match the 3/4 in square drive to your ratchet or handle, then choose the size that fits the fastener. The catalogue prints one dimension table for the 6-point and 12-point series (6405A and 6400A), so the lengths and weights shown here are the figures printed for both. (manufacturer-stated) The catalogue's safety notes say to select impact sockets only for electric or air impact wrenches and not to substitute hand sockets for impact sockets; this series is listed in the hand sockets section of the catalogue. (manufacturer-stated)
Related products
Related Ko-Ken products: Ko-Ken 6305A 12-Point Deep Socket, Inch Sizes, 3/4 in Drive, Ko-Ken 6305A 12-Point Deep Socket, 15/16 in, 3/4 in Drive, Ko-Ken 6405M 12-Point Socket, Metric Sizes, 3/4 in Drive, Ko-Ken 6305M 12-Point Deep Socket, Metric Sizes, 3/4 in Drive and Ko-Ken 3000-60 Phillips Bit Socket, 3/8 in Drive.
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1mm socket
Model Number: KO6405A32
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1-1/2mm socket
Model Number: KO6405A48
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1-1/4mm socket
Model Number: KO6405A40
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1-1/8mm socket
Model Number: KO6405A36
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1-1/16mm socket
Model Number: KO6405A34
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1-3/4mm socket
Model Number: KO6405A56
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1-3/8mm socket
Model Number: KO6405A44
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1-3/16mm socket
Model Number: KO6405A38
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1-5/8mm socket
Model Number: KO6405A52
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1-5/16mm socket
Model Number: KO6405A42
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1-7/8mm socket
Model Number: KO6405A60
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1-7/16mm socket
Model Number: KO6405A46
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1-9/16mm socket
Model Number: KO6405A50
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1-11/16mm socket
Model Number: KO6405A54
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1-13/16mm socket
Model Number: KO6405A58
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1-15/16mm socket
Model Number: KO6405A62
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2mm socket
Model Number: KO6405A64
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2-1/2mm socket
Model Number: KO6405A80
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2-1/4mm socket
Model Number: KO6405A72
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2-1/8mm socket
Model Number: KO6405A68
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2-1/16mm socket
Model Number: KO6405A66
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2-3/8mm socket
Model Number: KO6405A76
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2-3/16mm socket
Model Number: KO6405A70
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2-5/16mm socket
Model Number: KO6405A74
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2-7/16mm socket
Model Number: KO6405A78
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3/4mm socket
Model Number: KO6405A24
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7/8mm socket
Model Number: KO6405A28
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11/16mm socket
Model Number: KO6405A22
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13/16mm socket
Model Number: KO6405A26
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15/16mm socket
Model Number: KO6405A30
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25/32mm socket
Model Number: KO6405A25
