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 4425-E12N 1/2 Sq. Dr. Socket TORX E12N Low Profile Length 37mm
SKU: KK-4425-E12N
MPN: 4425-E12N
Ko-ken 4425-E14 1/2 Sq. Dr. Socket TORX E14 Length 37mm
SKU: KK-4425-E14
MPN: 4425-E14
Ko-ken 4425-E14N 1/2 Sq. Dr. Socket TORX E14N Low Profile Length 37mm
SKU: KK-4425-E14N
MPN: 4425-E14N
Ko-ken 4425-E16 1/2 Sq. Dr. Socket TORX E16 Length 37mm
SKU: KK-4425-E16
MPN: 4425-E16
Ko-ken 4425-E16N 1/2 Sq. Dr. Socket TORX E16N Low Profile Length 37mm
SKU: KK-4425-E16N
MPN: 4425-E16N
Ko-ken 4425-E18 1/2 Sq. Dr. Socket TORX E18 Length 37mm
SKU: KK-4425-E18
MPN: 4425-E18
Ko-ken 4425-E18N 1/2 Sq. Dr. Socket TORX E18N Low Profile Length 37mm
SKU: KK-4425-E18N
MPN: 4425-E18N
Ko-ken 4425-E20 1/2 Sq. Dr. Socket TORX E20 Length 37mm
SKU: KK-4425-E20
MPN: 4425-E20
Ko-ken 4425-E20N 1/2 Sq. Dr. Socket TORX E20N Low Profile Length 37mm
SKU: KK-4425-E20N
MPN: 4425-E20N
Ko-ken 4425-E22 1/2 Sq. Dr. Socket TORX E22 Length 37mm
SKU: KK-4425-E22
MPN: 4425-E22
Ko-ken 4425-E24 1/2 Sq. Dr. Socket TORX E24 Length 40mm
SKU: KK-4425-E24
MPN: 4425-E24
Ko-ken 4425-E8 1/2 Sq. Dr. Socket TORX E8 Length 36mm
SKU: KK-4425-E8
MPN: 4425-E8
Ko-ken 4433A-125 1/2 Sq. Dr. Adaptor 3/8 Square Length 125mm
SKU: KK-4433A-125
MPN: 4433A-125
Ko-ken 4433A-250 1/2 Sq. Dr. Adaptor 3/8 Square Length 250mm
SKU: KK-4433A-250
MPN: 4433A-250
Ko-ken 4433A-35 1/2 Sq. Dr. Adaptor 3/8 Square Length 35mm
SKU: KK-4433A-35
MPN: 4433A-35
Ko-ken 4433A-600 1/2 Sq. Dr. Adaptor 3/8 Square Length 600mm
SKU: KK-4433A-600
MPN: 4433A-600
Ko-ken 4433A-75 1/2 Sq. Dr. Adaptor 3/8 Square Length 75mm
SKU: KK-4433A-75
MPN: 4433A-75
Ko-ken 4440A-1/2 1/2 Sq. Dr. Universal Socket 1/2 6 point Length 66mm
SKU: KK-4440A-1/2
MPN: 4440A-1/2
Ko-ken 4440A-11/16 1/2 Sq. Dr. Universal Socket 11/16 6 point Length 69mm
SKU: KK-4440A-11/16
MPN: 4440A-11/16
Ko-ken 4440A-3/4 1/2 Sq. Dr. Universal Socket 3/4 6 point Length 71mm
SKU: KK-4440A-3/4
MPN: 4440A-3/4
Ko-ken 4440A-3/8 1/2 Sq. Dr. Universal Socket 3/8 6 point Length 63mm
SKU: KK-4440A-3/8
MPN: 4440A-3/8
Ko-ken 4440A-5/8 1/2 Sq. Dr. Universal Socket 5/8 6 point Length 68mm
SKU: KK-4440A-5/8
MPN: 4440A-5/8
Ko-ken 4440A-7/16 1/2 Sq. Dr. Universal Socket 7/16 6 point Length 65mm
SKU: KK-4440A-7/16
MPN: 4440A-7/16
Ko-ken 4440A-7/8 1/2 Sq. Dr. Universal Socket 7/8 6 point Length 72mm
SKU: KK-4440A-7/8
MPN: 4440A-7/8