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 4466A 1/2 Sq. Dr. Adaptor 3/4 Square Length 42mm
SKU: KK-4466A
MPN: 4466A
Ko-ken 4711X T Handle 1/2 Square Length 280 x 350mm Sliding Bar Free Turn Grip
SKU: KK-4711X
MPN: 4711X
Ko-ken 4715S T Handle 1/2 Square Length 267 x 170mm
SKU: KK-4715S
MPN: 4715S
Ko-ken 4715SL T Handle 1/2 Square Length 250 x 250mm Sliding Bar
SKU: KK-4715SL
MPN: 4715SL
Ko-ken 4725Z 1/2 Sq. Dr. Ratchet Handle 36 teeth Length 253mm Z-series
SKU: KK-4725Z
MPN: 4725Z
Ko-ken 4749J-380 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 380mm Plastic Handle
SKU: KK-4749J-380
MPN: 4749J-380
Ko-ken 4749N-250 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 250mm Metal Handle
SKU: KK-4749N-250
MPN: 4749N-250
Ko-ken 4749N-380 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 380mm Metal Handle
SKU: KK-4749N-380
MPN: 4749N-380
Ko-ken 4749RK Renewal Kit
SKU: KK-4749RK
MPN: 4749RK
Ko-ken 4750BRK Renewal Kit
SKU: KK-4750BRK
MPN: 4750BRK
Ko-ken 4750J 1/2 Sq. Dr. Ratchet Handle 30 teeth Length 250mm Plastic Handle
SKU: KK-4750J
MPN: 4750J
Ko-ken 4750JB 1/2 Sq. Dr. Ratchet Handle 30 teeth Length 250mm Push Button Plastic Handle
SKU: KK-4750JB
MPN: 4750JB
Ko-ken 4750N 1/2 Sq. Dr. Ratchet Handle 30 teeth Length 250mm Metal Handle
SKU: KK-4750N
MPN: 4750N
Ko-ken 4750NB 1/2 Sq. Dr. Ratchet Handle 30 teeth Length 250mm Push Button Metal Handle
SKU: KK-4750NB
MPN: 4750NB
Ko-ken 4750P 1/2 Sq. Dr. Ratchet Handle 30 teeth Length 250mm Polished Handle
SKU: KK-4750P
MPN: 4750P
Ko-ken 4750PB 1/2 Sq. Dr. Ratchet Handle 30 teeth Length 250mm Push Button Polished Handle
SKU: KK-4750PB
MPN: 4750PB
Ko-ken 4750RK Renewal Kit
SKU: KK-4750RK
MPN: 4750RK
Ko-ken 4752J 1/2 Sq. Dr. Ratchet Handle 45 teeth Length 250mm Plastic Handle
SKU: KK-4752J
MPN: 4752J
Ko-ken 4752N 1/2 Sq. Dr. Ratchet Handle 45 teeth Length 250mm Metal Handle
SKU: KK-4752N
MPN: 4752N
Ko-ken 4752RK-2 Renewal Kit
SKU: KK-4752RK-2
MPN: 4752RK-2
Ko-ken 4753BRK Renewal Kit 4774NB/PB/JB
SKU: KK-4753BRK
MPN: 4753BRK
Ko-ken 4753J 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 250mm Plastic Handle
SKU: KK-4753J
MPN: 4753J
Ko-ken 4753JB 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 250mm Push Button Plastic Handle
SKU: KK-4753JB
MPN: 4753JB
Ko-ken 4753N 1/2 Sq. Dr. Ratchet Handle 24 teeth Length 250mm Metal Handle
SKU: KK-4753N
MPN: 4753N