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.
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 4753NB 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 250mm Push Button Metal Handle
SKU: KK-4753NB
MPN: 4753NB
Ko-ken 4753P 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 250mm Polished Handle
SKU: KK-4753P
MPN: 4753P
Ko-ken 4753P-410 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 410mm Polished Handle
SKU: KK-4753P-410
MPN: 4753P-410
Ko-ken 4753PB 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 250mm Push Button Polished Handle
SKU: KK-4753PB
MPN: 4753PB
Ko-ken 4753RK Renewal Kit 4774N/P/J
SKU: KK-4753RK
MPN: 4753RK
Ko-ken 4755RK Renewal Kit
SKU: KK-4755RK
MPN: 4755RK
Ko-ken 4756Z 1/2 Sq. Dr. Quick Spinner 1/2 Square Length 33.5mm Z-series
SKU: KK-4756Z
MPN: 4756Z
Ko-ken 4760-100 1/2 Sq. Dr. Extension Bar Length 100mm
SKU: KK-4760-100
MPN: 4760-100
Ko-ken 4760-1000 1/2 Sq. Dr. Extension Bar Length 1000mm
SKU: KK-4760-1000
MPN: 4760-1000
Ko-ken 4760-125 1/2 Sq. Dr. Extension Bar Length 125mm
SKU: KK-4760-125
MPN: 4760-125
Ko-ken 4760-150 1/2 Sq. Dr. Extension Bar Length 150mm
SKU: KK-4760-150
MPN: 4760-150
Ko-ken 4760-200 1/2 Sq. Dr. Extension Bar Length 200mm
SKU: KK-4760-200
MPN: 4760-200
Ko-ken 4760-250 1/2 Sq. Dr. Extension Bar Length 250mm
SKU: KK-4760-250
MPN: 4760-250
Ko-ken 4760-300 1/2 Sq. Dr. Extension Bar Length 300mm
SKU: KK-4760-300
MPN: 4760-300
Ko-ken 4760-35 1/2 Sq. Dr. Extension Bar Length 35mm
SKU: KK-4760-35
MPN: 4760-35
Ko-ken 4760-400 1/2 Sq. Dr. Extension Bar Length 400mm
SKU: KK-4760-400
MPN: 4760-400
Ko-ken 4760-50 1/2 Sq. Dr. Extension Bar Length 50mm
SKU: KK-4760-50
MPN: 4760-50
Ko-ken 4760-500 1/2 Sq. Dr. Extension Bar Length 500mm
SKU: KK-4760-500
MPN: 4760-500
Ko-ken 4760-600 1/2 Sq. Dr. Extension Bar Length 600mm
SKU: KK-4760-600
MPN: 4760-600
Ko-ken 4760-75 1/2 Sq. Dr. Extension Bar Length 75mm
SKU: KK-4760-75
MPN: 4760-75
Ko-ken 4760-900 1/2 Sq. Dr. Extension Bar Length 900mm
SKU: KK-4760-900
MPN: 4760-900
Ko-ken 4760Z-125 1/2 Sq. Dr. Extension Bar 1/2 Square Length 125mm Z-series
SKU: KK-4760Z-125
MPN: 4760Z-125
Ko-ken 4760Z-250 1/2 Sq. Dr. Extension Bar 1/2 Square Length 250mm Z-series
SKU: KK-4760Z-250
MPN: 4760Z-250
Ko-ken 4763-125 1/2 Sq. Dr. Wobble-Fix Extension Bar Length 125mm
SKU: KK-4763-125
MPN: 4763-125