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 3440A-3/4 3/8 Sq. Dr. Universal Socket 3/4 6 point Length 56.5mm
SKU: KK-3440A-3/4
MPN: 3440A-3/4
Ko-ken 3440A-3/8 3/8 Sq. Dr. Universal Socket 3/8 6 point Length 48mm
SKU: KK-3440A-3/8
MPN: 3440A-3/8
Ko-ken 3440A-5/16 3/8 Sq. Dr. Universal Socket 5/16 6 point Length 47mm
SKU: KK-3440A-5/16
MPN: 3440A-5/16
Ko-ken 3440A-5/8 3/8 Sq. Dr. Universal Socket 5/8 6 point Length 53.5mm
SKU: KK-3440A-5/8
MPN: 3440A-5/8
Ko-ken 3440A-7/16 3/8 Sq. Dr. Universal Socket 7/16 6 point Length 49.5mm
SKU: KK-3440A-7/16
MPN: 3440A-7/16
Ko-ken 3440A-9/16 3/8 Sq. Dr. Universal Socket 9/16 6 point Length 51mm
SKU: KK-3440A-9/16
MPN: 3440A-9/16
Ko-ken 3440M-10 3/8 Sq. Dr. Universal Socket 10mm 6 point Length 48.5mm
SKU: KK-3440M-10
MPN: 3440M-10
Ko-ken 3440M-11 3/8 Sq. Dr. Universal Socket 11mm 6 point Length 49.5mm
SKU: KK-3440M-11
MPN: 3440M-11
Ko-ken 3440M-12 3/8 Sq. Dr. Universal Socket 12mm 6 point Length 50mm
SKU: KK-3440M-12
MPN: 3440M-12
Ko-ken 3440M-13 3/8 Sq. Dr. Universal Socket 13mm 6 point Length 51mm
SKU: KK-3440M-13
MPN: 3440M-13
Ko-ken 3440M-14 3/8 Sq. Dr. Universal Socket 14mm 6 point Length 51mm
SKU: KK-3440M-14
MPN: 3440M-14
Ko-ken 3440M-15 3/8 Sq. Dr. Universal Socket 15mm 6 point Length 53.5mm
SKU: KK-3440M-15
MPN: 3440M-15
Ko-ken 3440M-16 3/8 Sq. Dr. Universal Socket 16mm 6 point Length 53.5mm
SKU: KK-3440M-16
MPN: 3440M-16
Ko-ken 3440M-17 3/8 Sq. Dr. Universal Socket 17mm 6 point Length 54.5mm
SKU: KK-3440M-17
MPN: 3440M-17
Ko-ken 3440M-18 3/8 Sq. Dr. Universal Socket 18mm 6 point Length 54.5mm
SKU: KK-3440M-18
MPN: 3440M-18
Ko-ken 3440M-19 3/8 Sq. Dr. Universal Socket 19mm 6 point Length 56.5mm
SKU: KK-3440M-19
MPN: 3440M-19
Ko-ken 3440M-21 3/8 Sq. Dr. Universal Socket 21mm 6 point Length 56.5mm
SKU: KK-3440M-21
MPN: 3440M-21
Ko-ken 3440M-8 3/8 Sq. Dr. Universal Socket 8mm 6 point Length 47mm
SKU: KK-3440M-8
MPN: 3440M-8
Ko-ken 3440M-9 3/8 Sq. Dr. Universal Socket 9mm 6 point Length 47.5mm
SKU: KK-3440M-9
MPN: 3440M-9
Ko-ken 3440T-E10 3/8 Sq. Dr. Universal Socket TORX E10 Length 47.7mm
SKU: KK-3440T-E10
MPN: 3440T-E10
Ko-ken 3440T-E12 3/8 Sq. Dr. Universal Socket TORX E12 Length 48.8mm
SKU: KK-3440T-E12
MPN: 3440T-E12
Ko-ken 3440T-E14 3/8 Sq. Dr. Universal Socket TORX E14 Length 50.1mm
SKU: KK-3440T-E14
MPN: 3440T-E14
Ko-ken 3440T-E16 3/8 Sq. Dr. Universal Socket TORX E16 Length 51.3mm
SKU: KK-3440T-E16
MPN: 3440T-E16
Ko-ken 3440T-E18 3/8 Sq. Dr. Universal Socket TORX E18 Length 53.5mm
SKU: KK-3440T-E18
MPN: 3440T-E18