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 4763-150 1/2 Sq. Dr. Wobble-Fix Extension Bar Length 150mm
SKU: KK-4763-150
MPN: 4763-150
Ko-ken 4763-250 1/2 Sq. Dr. Wobble-Fix Extension Bar Length 250mm
SKU: KK-4763-250
MPN: 4763-250
Ko-ken 4763-400 1/2 Sq. Dr. Wobble-Fix Extension Bar Length 400mm
SKU: KK-4763-400
MPN: 4763-400
Ko-ken 4763-50 1/2 Sq. Dr. Wobble-Fix Extension Bar Length 50mm
SKU: KK-4763-50
MPN: 4763-50
Ko-ken 4763-75 1/2 Sq. Dr. Wobble-Fix Extension Bar Length 75mm
SKU: KK-4763-75
MPN: 4763-75
Ko-ken 4768J-380 1/2 Sq. Dr. Hinge Handle Length 380mm Plastic Handle
SKU: KK-4768J-380
MPN: 4768J-380
Ko-ken 4768J-450 1/2 Sq. Dr. Hinge Handle Length 450mm Plastic Handle
SKU: KK-4768J-450
MPN: 4768J-450
Ko-ken 4768J-600 1/2 Sq. Dr. Hinge Handle Length 600mm Plastic Handle
SKU: KK-4768J-600
MPN: 4768J-600
Ko-ken 4768N-300 1/2 Sq. Dr. Hinge Handle Length 300mm Metal Handle
SKU: KK-4768N-300
MPN: 4768N-300
Ko-ken 4768N-380 1/2 Sq. Dr. Hinge Handle Length 380mm Metal Handle
SKU: KK-4768N-380
MPN: 4768N-380
Ko-ken 4768N-450 1/2 Sq. Dr. Hinge Handle Length 450mm Metal Handle
SKU: KK-4768N-450
MPN: 4768N-450
Ko-ken 4768N-600 1/2 Sq. Dr. Hinge Handle Length 600mm Metal Handle
SKU: KK-4768N-600
MPN: 4768N-600
Ko-ken 4768P-380 1/2 Sq. Dr. Hinge Handle Length 380mm Polished Handle
SKU: KK-4768P-380
MPN: 4768P-380
Ko-ken 4768P-450 1/2 Sq. Dr. Hinge Handle Length 450mm Polished Handle
SKU: KK-4768P-450
MPN: 4768P-450
Ko-ken 4768P-600 1/2 Sq. Dr. Hinge Handle Length 60mm Polished Handle
SKU: KK-4768P-600
MPN: 4768P-600
Ko-ken 4768RK Renewal Kit 4781N
SKU: KK-4768RK
MPN: 4768RK
Ko-ken 4768Z-430 1/2 Sq. Dr. Hinge Handle Length 430mm Z-series
SKU: KK-4768Z-430
MPN: 4768Z-430
Ko-ken 4768ZRK Renewal Kit
SKU: KK-4768ZRK
MPN: 4768ZRK
Ko-ken 4771Z 1/2 Sq. Dr. Universal Joint 1/2 Square Length 55.8mm Z-series
SKU: KK-4771Z
MPN: 4771Z
Ko-ken 4772Z 1/2 Sq. Dr. Universal Double Joint 1/2 Square Length 87.2mm Z-series
SKU: KK-4772Z
MPN: 4772Z
Ko-ken 4774J 1/2 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 330mm Plastic Handle
SKU: KK-4774J
MPN: 4774J
Ko-ken 4774JB 1/2 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 330mm Push Button Plastic Handle
SKU: KK-4774JB
MPN: 4774JB
Ko-ken 4774N 1/2 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 330mm Metal Handle
SKU: KK-4774N
MPN: 4774N
Ko-ken 4774NB 1/2 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 330mm Push Button Metal Handle
SKU: KK-4774NB
MPN: 4774NB