Ko-ken is a Japanese tool manufacturer known for precision-made sockets, ratchets, and impact sockets. Its tools are built to tight tolerances from high-quality alloy steel, and professionals in automotive, industrial, and maintenance work rely on them for a secure fit, long service life, and consistent performance.
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Koken B51, 5/8" O-Ring
Koken | SKU: KK-B51
MSRP: $2.22Price: $1.795/8" O-Ring- Availability:
- Ships in 10 business days
MSRP: $2.22Price: $1.79 -
Koken B42, 1/2" O-Ring (for larger hex sizes)
Koken | SKU: KK-B42
MSRP: $1.67Price: $1.351/2" O-Ring (for larger hex sizes)- Availability:
- Ships in 10 business days
MSRP: $1.67Price: $1.35 -
Koken B41, 1/2" O-Ring
Koken | SKU: KK-B41
MSRP: $1.71Price: $1.391/2" O-Ring- Availability:
- Ships in 10 business days
MSRP: $1.71Price: $1.39 -
Koken B32, 3/8" O Ring (for larger hex sizes)
Koken | SKU: KK-B32
MSRP: $1.67Price: $1.353/8" O Ring (for larger hex sizes)- Availability:
- Ships in 10 business days
MSRP: $1.67Price: $1.35 -
Koken B31, 3/8" O Ring (100 pieces)
Koken | SKU: KK-B31
MSRP: $1.42Price: $1.153/8" O Ring (100 pieces)- Availability:
- Ships in 10 business days
MSRP: $1.42Price: $1.15 -
Koken B21, 1/4" O Ring (100 pieces)
Koken | SKU: KK-B21
MSRP: $1.10Price: $0.891/4" O Ring (100 pieces)- Availability:
- Ships in 10 business days
MSRP: $1.10Price: $0.89 -
Koken A82, 1" Pin (for larger hex sizes)
Koken | SKU: KK-A82
MSRP: $0.95Price: $0.771" Pin (for larger hex sizes)- Availability:
- Ships in 10 business days
MSRP: $0.95Price: $0.77 -
Koken A81, 1" Pin
Koken | SKU: KK-A81
MSRP: $1.32Price: $1.061" Pin- Availability:
- Ships in 10 business days
MSRP: $1.32Price: $1.06 -
Koken A71, 1.1/2" Pin
Koken | SKU: KK-A71
MSRP: $3.35Price: $2.711.1/2" Pin- Availability:
- Ships in 10 business days
MSRP: $3.35Price: $2.71 -
Koken A62, 3/4" Pin (for larger hex sizes)
Koken | SKU: KK-A62
MSRP: $1.54Price: $1.243/4" Pin (for larger hex sizes)- Availability:
- Ships in 10 business days
MSRP: $1.54Price: $1.24 -
Koken A61, 3/4" Pin
Koken | SKU: KK-A61
MSRP: $1.23Price: $1.003/4" Pin- Availability:
- Ships in 10 business days
MSRP: $1.23Price: $1.00 -
Koken A51, 5/8" Pin
Koken | SKU: KK-A51
MSRP: $1.24Price: $1.005/8" Pin- Availability:
- Ships in 10 business days
MSRP: $1.24Price: $1.00 -
Koken A32, 3/8" Pin (for larger hex sizes)
Koken | SKU: KK-A32
MSRP: $0.84Price: $0.683/8" Pin (for larger hex sizes)- Availability:
- Ships in 10 business days
MSRP: $0.84Price: $0.68 -
Koken A41, 1/2" Pin
Koken | SKU: KK-A41
MSRP: $1.12Price: $0.901/2" Pin- Availability:
- Ships in 10 business days
MSRP: $1.12Price: $0.90 -
Koken A42, 1/2" Pin (for larger hex sizes)
Koken | SKU: KK-A42
MSRP: $0.99Price: $0.811/2" Pin (for larger hex sizes)- Availability:
- Ships in 10 business days
MSRP: $0.99Price: $0.81 -
Koken A31, 3/8" Pin
Koken | SKU: KK-A31
MSRP: $0.85Price: $0.693/8" Pin- Availability:
- Ships in 10 business days
MSRP: $0.85Price: $0.69 -
Koken A21, 1/4" Pin
Koken | SKU: KK-A21
MSRP: $0.69Price: $0.561/4" Pin- Availability:
- Ships in 10 business days
MSRP: $0.69Price: $0.56 -
Koken 8405M-59, Socket 1" Sq. Dr. 12-P 59mm
Koken | SKU: KK-8405M-59
MSRP: $129.31Price: $103.45Socket 1" Sq. Dr. 12-P 59mm- Availability:
- Ships in 10 business days
MSRP: $129.31Price: $103.45 -
Koken 8405M-57, Socket 1" Sq. Dr. 12-P 57mm
Koken | SKU: KK-8405M-57
MSRP: $129.31Price: $103.45Socket 1" Sq. Dr. 12-P 57mm- Availability:
- Ships in 10 business days
MSRP: $129.31Price: $103.45 -
Koken 8405M-53, Socket 1" Sq. Dr. 12-P 53mm
Koken | SKU: KK-8405M-53
MSRP: $94.47Price: $75.58Socket 1" Sq. Dr. 12-P 53mm- Availability:
- Ships in 10 business days
MSRP: $94.47Price: $75.58