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.
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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 13103M-6(1.0) 3/8 Sq. Dr. Stud Bolt Setter M6 X 1.0 Length 32mm
SKU: KK-13103M-6(1.0)
MPN: 13103M-6(1.0)
Ko-ken 13103M-7(1.0) 3/8 Sq. Dr. Stud Bolt Setter M7 X 1.0 Length 32mm
SKU: KK-13103M-7(1.0)
MPN: 13103M-7(1.0)
Ko-ken 13103M-8(1.25) 3/8 Sq. Dr. Stud Bolt Setter M8 X 1.25 Length 35mm
SKU: KK-13103M-8(1.25)
MPN: 13103M-8(1.25)
Ko-ken 13134M.52-10 3/8 Sq. Dr. Bit Socket 10mm Hex Length 52mm
SKU: KK-13134M.52-10
MPN: 13134M.52-10
Ko-ken 13134M.52-12 3/8 Sq. Dr. Bit Socket 12mm Hex Length 52mm
SKU: KK-13134M.52-12
MPN: 13134M.52-12
Ko-ken 13134M.52-14 3/8 Sq. Dr. Bit Socket 14mm Hex Length 52mm
SKU: KK-13134M.52-14
MPN: 13134M.52-14
Ko-ken 13134M.52-3 3/8 Sq. Dr. Bit Socket 3mm Hex Length 52mm
SKU: KK-13134M.52-3
MPN: 13134M.52-3
Ko-ken 13134M.52-4 3/8 Sq. Dr. Bit Socket 4mm Hex Length 52mm
SKU: KK-13134M.52-4
MPN: 13134M.52-4
Ko-ken 13134M.52-5 3/8 Sq. Dr. Bit Socket 5mm Hex Length 52mm
SKU: KK-13134M.52-5
MPN: 13134M.52-5
Ko-ken 13134M.52-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 52mm
SKU: KK-13134M.52-6
MPN: 13134M.52-6
Ko-ken 13134M.52-8 3/8 Sq. Dr. Bit Socket 8mm Hex Length 52mm
SKU: KK-13134M.52-8
MPN: 13134M.52-8
Ko-ken 13134M.92-10 3/8 Sq. Dr. Bit Socket 10mm Hex Length 92mm
SKU: KK-13134M.92-10
MPN: 13134M.92-10
Ko-ken 13134M.92-12 3/8 Sq. Dr. Bit Socket 12mm Hex Length 92mm
SKU: KK-13134M.92-12
MPN: 13134M.92-12
Ko-ken 13134M.92-14 3/8 Sq. Dr. Bit Socket 14mm Hex Length 92mm
SKU: KK-13134M.92-14
MPN: 13134M.92-14
Ko-ken 13134M.92-3 3/8 Sq. Dr. Bit Socket 3mm Hex Length 92mm
SKU: KK-13134M.92-3
MPN: 13134M.92-3
Ko-ken 13134M.92-4 3/8 Sq. Dr. Bit Socket 4mm Hex Length 92mm
SKU: KK-13134M.92-4
MPN: 13134M.92-4
Ko-ken 13134M.92-5 3/8 Sq. Dr. Bit Socket 5mm Hex Length 92mm
SKU: KK-13134M.92-5
MPN: 13134M.92-5
Ko-ken 13134M.92-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 92mm
SKU: KK-13134M.92-6
MPN: 13134M.92-6
Ko-ken 13134M.92-8 3/8 Sq. Dr. Bit Socket 8mm Hex Length 92mm
SKU: KK-13134M.92-8
MPN: 13134M.92-8
Ko-ken 13134T.52-30IP 3/8 Sq. Dr. Bit Socket TORXPLUS 30IP Length 52mm
SKU: KK-13134T.52-30IP
MPN: 13134T.52-30IP
Ko-ken 13134T.52-40IP 3/8 Sq. Dr. Bit Socket TORXPLUS 40IP Length 52mm
SKU: KK-13134T.52-40IP
MPN: 13134T.52-40IP
Ko-ken 13134T.52-45IP 3/8 Sq. Dr. Bit Socket TORXPLUS 45IP Length 52mm
SKU: KK-13134T.52-45IP
MPN: 13134T.52-45IP
Ko-ken 13134T.52-50IP 3/8 Sq. Dr. Bit Socket TORXPLUS 50IP Length 52mm
SKU: KK-13134T.52-50IP
MPN: 13134T.52-50IP
Ko-ken 13134T.52-55IP 3/8 Sq. Dr. Bit Socket TORXPLUS 55IP Length 52mm
SKU: KK-13134T.52-55IP
MPN: 13134T.52-55IP










