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 3440T-E20 3/8 Sq. Dr. Universal Socket TORX E20 Length 54.9mm
SKU: KK-3440T-E20
MPN: 3440T-E20
Ko-ken 3440T-E6 3/8 Sq. Dr. Universal Socket TORX E6 Length 44.9mm
SKU: KK-3440T-E6
MPN: 3440T-E6
Ko-ken 3440T-E8 3/8 Sq. Dr. Universal Socket TORX E8 Length 46.5mm
SKU: KK-3440T-E8
MPN: 3440T-E8
Ko-ken 3441M-10 3/8 Sq. Dr. Universal Socket 10mm Nut Grip Length 46mm
SKU: KK-3441M-10
MPN: 3441M-10
Ko-ken 3441M-12 3/8 Sq. Dr. Universal Socket 12mm Nut Grip Length 47mm
SKU: KK-3441M-12
MPN: 3441M-12
Ko-ken 3441M-13 3/8 Sq. Dr. Universal Socket 13mm Nut Grip Length 48mm
SKU: KK-3441M-13
MPN: 3441M-13
Ko-ken 3441M-14 3/8 Sq. Dr. Universal Socket 14mm Nut Grip Length 49.5mm
SKU: KK-3441M-14
MPN: 3441M-14
Ko-ken 3441M-8 3/8 Sq. Dr. Universal Socket 8mm Nut Grip
SKU: KK-3441M-8
MPN: 3441M-8
Ko-ken 3445A-1/2 3/8 Sq. Dr. Universal Socket 1/2 12 point Length 51mm
SKU: KK-3445A-1/2
MPN: 3445A-1/2
Ko-ken 3445A-11/16 3/8 Sq. Dr. Universal Socket 11/16 12 point Length 54.5mm
SKU: KK-3445A-11/16
MPN: 3445A-11/16
Ko-ken 3445A-3/4 3/8 Sq. Dr. Universal Socket 3/4 12 point Length 56.5mm
SKU: KK-3445A-3/4
MPN: 3445A-3/4
Ko-ken 3445A-3/8 3/8 Sq. Dr. Universal Socket 3/8 12 point Length 48mm
SKU: KK-3445A-3/8
MPN: 3445A-3/8
Ko-ken 3445A-5/16 3/8 Sq. Dr. Universal Socket 5/16 12 point Length 47mm
SKU: KK-3445A-5/16
MPN: 3445A-5/16
Ko-ken 3445A-5/8 3/8 Sq. Dr. Universal Socket 5/8 12 point Length 53.5mm
SKU: KK-3445A-5/8
MPN: 3445A-5/8
Ko-ken 3445A-7/16 3/8 Sq. Dr. Universal Socket 7/16 12 point Length 49.5mm
SKU: KK-3445A-7/16
MPN: 3445A-7/16
Ko-ken 3445A-9/16 3/8 Sq. Dr. Universal Socket 9/16 12 point Length 51mm
SKU: KK-3445A-9/16
MPN: 3445A-9/16
Ko-ken 3445M-10 3/8 Sq. Dr. Universal Socket 10mm 12 point Length 48.5mm
SKU: KK-3445M-10
MPN: 3445M-10
Ko-ken 3445M-11 3/8 Sq. Dr. Universal Socket 11mm 12 point Length 49.5mm
SKU: KK-3445M-11
MPN: 3445M-11
Ko-ken 3445M-12 3/8 Sq. Dr. Universal Socket 12mm 12 point Length 50mm
SKU: KK-3445M-12
MPN: 3445M-12
Ko-ken 3445M-13 3/8 Sq. Dr. Universal Socket 13mm 12 point Length 51mm
SKU: KK-3445M-13
MPN: 3445M-13
Ko-ken 3445M-14 3/8 Sq. Dr. Universal Socket 14mm 12 point Length 51mm
SKU: KK-3445M-14
MPN: 3445M-14
Ko-ken 3445M-15 3/8 Sq. Dr. Universal Socket 15mm 12 point Length 53.5mm
SKU: KK-3445M-15
MPN: 3445M-15
Ko-ken 3445M-16 3/8 Sq. Dr. Universal Socket 16mm 12 point Length 53.5mm
SKU: KK-3445M-16
MPN: 3445M-16
Ko-ken 3445M-17 3/8 Sq. Dr. Universal Socket 17mm 12 point Length 54.5mm
SKU: KK-3445M-17
MPN: 3445M-17