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 4103M-6(1.0) 1/2 Sq. Dr. Stud Bolt Setter M6 X 1.0 Length 37mm
SKU: KK-4103M-6(1.0)
MPN: 4103M-6(1.0)
Ko-ken 4103M-7(1.0) 1/2 Sq. Dr. Stud Bolt Setter M7 X 1.0 Length 37mm
SKU: KK-4103M-7(1.0)
MPN: 4103M-7(1.0)
Ko-ken 4103M-8(1.25) 1/2 Sq. Dr. Stud Bolt Setter M8 X 1.25 Length 37mm
SKU: KK-4103M-8(1.25)
MPN: 4103M-8(1.25)
Ko-ken 4109M-14 1/2 Sq. Dr. Socket 14mm Double Square Length 38mm For Lubrication service
SKU: KK-4109M-14
MPN: 4109M-14
Ko-ken 4109M-17 1/2 Sq. Dr. Socket 17mm Double Square Length 40mm For Lubrication service
SKU: KK-4109M-17
MPN: 4109M-17
Ko-ken 4109M-19 1/2 Sq. Dr. Socket 19mm Double Square Length 40mm For Lubrication service
SKU: KK-4109M-19
MPN: 4109M-19
Ko-ken 4109M-21.5 1/2 Sq. Dr. Socket 21.5mm Double Square Length 40mm For Lubrication service
SKU: KK-4109M-21.5
MPN: 4109M-21.5
Ko-ken 4109M-23 1/2 Sq. Dr. Socket 23mm Double Square Length 43mm For Lubrication service
SKU: KK-4109M-23
MPN: 4109M-23
Ko-ken 4110A-1/2 1/2 Sq. Dr. Bit Socket 1/2 Square Length 32mm For Drain Plug
SKU: KK-4110A-1/2
MPN: 4110A-1/2
Ko-ken 4110A-3/8 1/2 Sq. Dr. Bit Socket 3/8 Square Length 32mm For Drain Plug
SKU: KK-4110A-3/8
MPN: 4110A-3/8
Ko-ken 4110M-10 1/2 Sq. Dr. Bit Socket 10mm Square Length 32mm For Drain Plug
SKU: KK-4110M-10
MPN: 4110M-10
Ko-ken 4110M-10.5 1/2 Sq. Dr. Bit Socket 10.5mm Square Length 32mm For Drain Plug
SKU: KK-4110M-10.5
MPN: 4110M-10.5
Ko-ken 4110M-12 1/2 Sq. Dr. Bit Socket 12mm Square Length 32mm For Drain Plug
SKU: KK-4110M-12
MPN: 4110M-12
Ko-ken 4110M-13 1/2 Sq. Dr. Bit Socket 13mm Square Length 32mm For Drain Plug
SKU: KK-4110M-13
MPN: 4110M-13
Ko-ken 4110M-13.5 1/2 Sq. Dr. Bit Socket 13.5mm Square Length 32mm For Drain Plug
SKU: KK-4110M-13.5
MPN: 4110M-13.5
Ko-ken 4110M-19 1/2 Sq. Dr. Bit Socket 19mm Square Length 37mm For Drain Plug
SKU: KK-4110M-19
MPN: 4110M-19
Ko-ken 4110M-20 1/2 Sq. Dr. Bit Socket 20mm Square Length 37mm For Drain Plug
SKU: KK-4110M-20
MPN: 4110M-20
Ko-ken 4110M-8 1/2 Sq. Dr. Bit Socket 8mm Square Length 32mm For Drain Plug
SKU: KK-4110M-8
MPN: 4110M-8
Ko-ken 4111M-24 1/2 Sq. Dr. Socket 24mm Double Square Length 40mm For Lubrication service
SKU: KK-4111M-24
MPN: 4111M-24
Ko-ken 4112G 1/2 Sq. Dr. Attack Driver Length 163mm Rubber Grip
SKU: KK-4112G
MPN: 4112G
Ko-ken 4112N 1/2 Sq. Dr. Attack Driver Length 163mm
SKU: KK-4112N
MPN: 4112N
Ko-ken 4112RK Renewal Kit
SKU: KK-4112RK
MPN: 4112RK
Ko-ken 4117M.125-13 1/2 Sq. Dr. Extension Socket 13mm 6 point Length 125mm
SKU: KK-4117M.125-13
MPN: 4117M.125-13
Ko-ken 4117M.125-14 1/2 Sq. Dr. Extension Socket 14mm 6 point Length 125mm
SKU: KK-4117M.125-14
MPN: 4117M.125-14