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Ko-Ken

Ko-Ken


Ko-Ken Professional Tools: Premium Industrial Hand Tools

Professional-Grade Ko-Ken Tools from Your Trusted Michigan-Based Distributor

Discover the Ko-Ken collection at Freer Tool & Supply—your destination for premium Japanese hand tools and sockets renowned for precision, durability, and professional performance. Our selection includes Ko-Ken’s high-quality impact sockets, ratchets, extensions, and specialty tools, all engineered for demanding automotive, industrial, and maintenance applications. Whether you’re a technician, mechanic, or industry professional, Ko-Ken tools deliver the reliability and accuracy you need for every job.


Ko-ken United states distributors

High Performance Tools of Convincing Quality.

Founded in 2012 by Jim Chase, Koken USA began sharing in the tool marketplace about an excellent product line of tools that was new to North America. He was so impressed by their quality and engineering that he claimed, "If we can just get them (Koken sockets) into the hands of the consumer, they will never buy anything else."

First with the introduction of Koken's broad line of standard sockets and tools, followed by their offering of custom sockets to meet specific customer requirements, Koken quickly developed a reputation for quality tools and outstanding customer service in North America.

Available Product Lines:
Professional Hand Tools:

Socket Sets
Impact Sockets
Specialty Tools
Industrial Solutions

Ko-ken NV13145.100-8 3/8 Sq. Dr. Extension Socket 8mm 6 point 100mm Sleeve Drive

Ko-ken NV13145.100-8 3/8 Sq. Dr. Extension Socket 8mm 6 point 100mm Sleeve Drive

SKU: KK-NV13145.100-8
MPN: NV13145.100-8

Save $16.21
Ko-ken NV13145.150-10 3/8 Sq. Dr. Extension Socket 10mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-10 3/8 Sq. Dr. Extension Socket 10mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-10
MPN: NV13145.150-10

Save $25.80
Ko-ken NV13145.150-12 3/8 Sq. Dr. Extension Socket 12mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-12 3/8 Sq. Dr. Extension Socket 12mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-12
MPN: NV13145.150-12

Save $25.80
Ko-ken NV13145.150-13 3/8 Sq. Dr. Extension Socket 13mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-13 3/8 Sq. Dr. Extension Socket 13mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-13
MPN: NV13145.150-13

Save $26.41
Ko-ken NV13145.150-14 3/8 Sq. Dr. Extension Socket 14mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-14 3/8 Sq. Dr. Extension Socket 14mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-14
MPN: NV13145.150-14

Save $26.41
Ko-ken NV13145.150-15 3/8 Sq. Dr. Extension Socket 15mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-15 3/8 Sq. Dr. Extension Socket 15mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-15
MPN: NV13145.150-15

Save $26.41
Ko-ken NV13145.150-16 3/8 Sq. Dr. Extension Socket 16mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-16 3/8 Sq. Dr. Extension Socket 16mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-16
MPN: NV13145.150-16

Save $26.41
Ko-ken NV13145.150-17 3/8 Sq. Dr. Extension Socket 17mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-17 3/8 Sq. Dr. Extension Socket 17mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-17
MPN: NV13145.150-17

Save $26.41
Ko-ken NV13145.150-6 3/8 Sq. Dr. Extension Socket 6mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-6 3/8 Sq. Dr. Extension Socket 6mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-6
MPN: NV13145.150-6

Save $25.80
Ko-ken NV13145.150-8 3/8 Sq. Dr. Extension Socket 8mm 6 point 150mm Sleeve Drive

Ko-ken NV13145.150-8 3/8 Sq. Dr. Extension Socket 8mm 6 point 150mm Sleeve Drive

SKU: KK-NV13145.150-8
MPN: NV13145.150-8

Save $25.80
Ko-ken NV13145.200-10 3/8 Sq. Dr. Extension Socket 10mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-10 3/8 Sq. Dr. Extension Socket 10mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-10
MPN: NV13145.200-10

Save $26.26
Ko-ken NV13145.200-12 3/8 Sq. Dr. Extension Socket 12mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-12 3/8 Sq. Dr. Extension Socket 12mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-12
MPN: NV13145.200-12

Save $26.26
Ko-ken NV13145.200-13 3/8 Sq. Dr. Extension Socket 13mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-13 3/8 Sq. Dr. Extension Socket 13mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-13
MPN: NV13145.200-13

Save $26.72
Ko-ken NV13145.200-14 3/8 Sq. Dr. Extension Socket 14mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-14 3/8 Sq. Dr. Extension Socket 14mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-14
MPN: NV13145.200-14

Save $26.72
Ko-ken NV13145.200-15 3/8 Sq. Dr. Extension Socket 15mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-15 3/8 Sq. Dr. Extension Socket 15mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-15
MPN: NV13145.200-15

Save $26.72
Ko-ken NV13145.200-16 3/8 Sq. Dr. Extension Socket 16mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-16 3/8 Sq. Dr. Extension Socket 16mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-16
MPN: NV13145.200-16

Save $26.72
Ko-ken NV13145.200-17 3/8 Sq. Dr. Extension Socket 17mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-17 3/8 Sq. Dr. Extension Socket 17mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-17
MPN: NV13145.200-17

Save $26.72
Ko-ken NV13145.200-6 3/8 Sq. Dr. Extension Socket 6mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-6 3/8 Sq. Dr. Extension Socket 6mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-6
MPN: NV13145.200-6

Save $26.26
Ko-ken NV13145.200-8 3/8 Sq. Dr. Extension Socket 8mm 6 point 200mm Sleeve Drive

Ko-ken NV13145.200-8 3/8 Sq. Dr. Extension Socket 8mm 6 point 200mm Sleeve Drive

SKU: KK-NV13145.200-8
MPN: NV13145.200-8

Save $26.26
Ko-ken NV13400-10 3/8 Sq. Dr. Socket 10mm 6 point 43mm Sleeve Drive

Ko-ken NV13400-10 3/8 Sq. Dr. Socket 10mm 6 point 43mm Sleeve Drive

SKU: KK-NV13400-10
MPN: NV13400-10

Save $10.66
Ko-ken NV13400-11 3/8 Sq. Dr. Socket 11mm 6 point 43mm Sleeve Drive

Ko-ken NV13400-11 3/8 Sq. Dr. Socket 11mm 6 point 43mm Sleeve Drive

SKU: KK-NV13400-11
MPN: NV13400-11

Save $10.66
Ko-ken NV13400-12 3/8 Sq. Dr. Socket 12mm 6 point 43mm Sleeve Drive

Ko-ken NV13400-12 3/8 Sq. Dr. Socket 12mm 6 point 43mm Sleeve Drive

SKU: KK-NV13400-12
MPN: NV13400-12

Save $10.66
Ko-ken NV13400-13 3/8 Sq. Dr. Socket 13mm 6 point 43mm Sleeve Drive

Ko-ken NV13400-13 3/8 Sq. Dr. Socket 13mm 6 point 43mm Sleeve Drive

SKU: KK-NV13400-13
MPN: NV13400-13

Save $11.70
Ko-ken NV13400-14 3/8 Sq. Dr. Socket 14mm 6 point 43mm Sleeve Drive

Ko-ken NV13400-14 3/8 Sq. Dr. Socket 14mm 6 point 43mm Sleeve Drive

SKU: KK-NV13400-14
MPN: NV13400-14

Save $11.70