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 3450M-24 3/8 Sq. Dr. Socket 24mm Nut Grip Length 31mm
SKU: KK-3450M-24
MPN: 3450M-24
Ko-ken 3450M-8 3/8 Sq. Dr. Socket 8mm Nut Grip Length 26mm
SKU: KK-3450M-8
MPN: 3450M-8
Ko-ken 3450MH-10 3/8 Sq. Dr. Socket 10mm Nut Grip Length 26mm Outer Hex 17mm
SKU: KK-3450MH-10
MPN: 3450MH-10
Ko-ken 3450MH-12 3/8 Sq. Dr. Socket 12mm Nut Grip Length 26mm Outer Hex 17mm
SKU: KK-3450MH-12
MPN: 3450MH-12
Ko-ken 3450MH-13 3/8 Sq. Dr. Socket 13mm Nut Grip Length 26mm Outer Hex 17mm
SKU: KK-3450MH-13
MPN: 3450MH-13
Ko-ken 3450MH-14 3/8 Sq. Dr. Socket 14mm Nut Grip Length 27mm Outer Hex 17mm
SKU: KK-3450MH-14
MPN: 3450MH-14
Ko-ken 3450MH-17 3/8 Sq. Dr. Socket 17mm Nut Grip Length 29mm Outer Hex 17mm
SKU: KK-3450MH-17
MPN: 3450MH-17
Ko-ken 3450MH-8 3/8 Sq. Dr. Socket 8mm Nut Grip Length 26mm Outer Hex 17mm
SKU: KK-3450MH-8
MPN: 3450MH-8
Ko-ken 3701-30Nm 3/8 Sq. Dr. Torque Adaptor 30Nm Length 75mm For Spark Plug
SKU: KK-3701-30Nm
MPN: 3701-30Nm
Ko-ken 3715S T Handle 3/8 Square Length 268 x 190mm Short
SKU: KK-3715S
MPN: 3715S
Ko-ken 3715SL T Handle 3/8 Square Length 237 x 200mm Sliding Bar
SKU: KK-3715SL
MPN: 3715SL
Ko-ken 3715SLK T Handle 3/8 Square Length 236 x 200mm Sliding Bar Free Turn Grip
SKU: KK-3715SLK
MPN: 3715SLK
Ko-ken 3725RK-2 Renewal Kit for 3725Z, ZS and 3726Z, ZS 72T Ratchets
SKU: KK-3725RK-2
MPN: 3725RK-2
Ko-ken 3749BRK Renewal Kit for the 3749SB Ratchet
SKU: KK-3749BRK
MPN: 3749BRK
Ko-ken 3749N 3/8 Sq. Dr. Ratchet Handle 24 teeth Length 200mm Metal Handle
SKU: KK-3749N
MPN: 3749N
Ko-ken 3749RK Renewal Kit 3749N
SKU: KK-3749RK
MPN: 3749RK
Ko-ken 3749S 3/8 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm
SKU: KK-3749S
MPN: 3749S
Ko-ken 3749S-1/2 1/2 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm
SKU: KK-3749S-1/2
MPN: 3749S-1/2
Ko-ken 3749SB 3/8 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm Push Button
SKU: KK-3749SB
MPN: 3749SB
Ko-ken 3749SB-1/2 1/2 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm Push Button
SKU: KK-3749SB-1/2
MPN: 3749SB-1/2
Ko-ken 3749SBRK-1/2 Renewal Kit
SKU: KK-3749SBRK-1/2
MPN: 3749SBRK-1/2
Ko-ken 3749SRK-1/2 Renewal Kit
SKU: KK-3749SRK-1/2
MPN: 3749SRK-1/2
Ko-ken 3752J 3/8 Sq. Dr. Ratchet Handle 45 teeth Length 200mm Plastic Handle
SKU: KK-3752J
MPN: 3752J
Ko-ken 3752N 3/8 Sq. Dr. Ratchet Handle 45 teeth Length 200mm Metal Handle
SKU: KK-3752N
MPN: 3752N