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 4300A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 77mm
SKU: KK-4300A-7/8
MPN: 4300A-7/8
Ko-ken 4300A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 77mm
SKU: KK-4300A-9/16
MPN: 4300A-9/16
Ko-ken 4300C-16 1/2 Sq. Dr. Spark Plug Socket 16mm 6 point Length 70mm Spring Clip
SKU: KK-4300C-16
MPN: 4300C-16
Ko-ken 4300C-18 1/2 Sq. Dr. Spark Plug Socket 18mm 6 point Length 70mm Spring Clip
SKU: KK-4300C-18
MPN: 4300C-18
Ko-ken 4300C-20.8 1/2 Sq. Dr. Spark Plug Socket 20.8mm 6 point Length 70mm Spring Clip
SKU: KK-4300C-20.8
MPN: 4300C-20.8
Ko-ken 4300H-24 1/2 Sq. Dr. Socket 24mm 6 point Length 57mm For Oil pressure switch
SKU: KK-4300H-24
MPN: 4300H-24
Ko-ken 4300H-26 1/2 Sq. Dr. Socket 26mm 6 point Length 57mm For Oil pressure switch
SKU: KK-4300H-26
MPN: 4300H-26
Ko-ken 4300H-27 1/2 Sq. Dr. Socket 27mm 6 point Length 57mm For Oil pressure switch
SKU: KK-4300H-27
MPN: 4300H-27
Ko-ken 4300H-27(8P) 1/2 Sq. Dr. Socket 27mm 8 point Length 57mm For Oil pressure switch
SKU: KK-4300H-27(8P)
MPN: 4300H-27(8P)
Ko-ken 4300M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 77mm
SKU: KK-4300M-10
MPN: 4300M-10
Ko-ken 4300M-10(L120) 1/2 Sq. Dr. Socket 10mm 6 point Length 120mm
SKU: KK-4300M-10(L120)
MPN: 4300M-10(L120)
Ko-ken 4300M-11 1/2 Sq. Dr. Socket 11mm 6 point Length 77mm
SKU: KK-4300M-11
MPN: 4300M-11
Ko-ken 4300M-12 1/2 Sq. Dr. Socket 12mm 6 point Length 77mm
SKU: KK-4300M-12
MPN: 4300M-12
Ko-ken 4300M-12(L120) 1/2 Sq. Dr. Socket 12mm 6 point Length 120mm
SKU: KK-4300M-12(L120)
MPN: 4300M-12(L120)
Ko-ken 4300M-13 1/2 Sq. Dr. Socket 13mm 6 point Length 77mm
SKU: KK-4300M-13
MPN: 4300M-13
Ko-ken 4300M-14 1/2 Sq. Dr. Socket 14mm 6 point Length 77mm
SKU: KK-4300M-14
MPN: 4300M-14
Ko-ken 4300M-14(L120) 1/2 Sq. Dr. Socket 14mm 6 point Length 120mm
SKU: KK-4300M-14(L120)
MPN: 4300M-14(L120)
Ko-ken 4300M-15 1/2 Sq. Dr. Socket 15mm 6 point Length 77mm
SKU: KK-4300M-15
MPN: 4300M-15
Ko-ken 4300M-16 1/2 Sq. Dr. Socket 16mm 6 point Length 77mm
SKU: KK-4300M-16
MPN: 4300M-16
Ko-ken 4300M-16(L120) 1/2 Sq. Dr. Socket 16mm 6 point Length 120mm
SKU: KK-4300M-16(L120)
MPN: 4300M-16(L120)
Ko-ken 4300M-17 1/2 Sq. Dr. Socket 17mm 6 point Length 77mm
SKU: KK-4300M-17
MPN: 4300M-17
Ko-ken 4300M-17(L110) 1/2 Sq. Dr. Wheel Nut Socket 17mm 6 point Length 110mm
SKU: KK-4300M-17(L110)
MPN: 4300M-17(L110)
Ko-ken 4300M-17(L60) 1/2 Sq. Dr. Wheel Nut Socket 17mm 6 point Length 60mm
SKU: KK-4300M-17(L60)
MPN: 4300M-17(L60)
Ko-ken 4300M-18 1/2 Sq. Dr. Socket 18mm 6 point Length 77mm
SKU: KK-4300M-18
MPN: 4300M-18