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 3117M.125-14 3/8 Sq. Dr. Extension Socket 14mm 6 point Length 125mm
SKU: KK-3117M.125-14
MPN: 3117M.125-14
Ko-ken 3117M.125-17 3/8 Sq. Dr. Extension Socket 17mm 6 point Length 125mm
SKU: KK-3117M.125-17
MPN: 3117M.125-17
Ko-ken 3117M.125-19 3/8 Sq. Dr. Extension Socket 19mm 6 point Length 125mm
SKU: KK-3117M.125-19
MPN: 3117M.125-19
Ko-ken 3117M.250-10 3/8 Sq. Dr. Extension Socket 10mm 6 point Length 250mm
SKU: KK-3117M.250-10
MPN: 3117M.250-10
Ko-ken 3117M.250-12 3/8 Sq. Dr. Extension Socket 12mm 6 point Length 250mm
SKU: KK-3117M.250-12
MPN: 3117M.250-12
Ko-ken 3117M.250-13 3/8 Sq. Dr. Extension Socket 13mm 6 point Length 250mm
SKU: KK-3117M.250-13
MPN: 3117M.250-13
Ko-ken 3117M.250-14 3/8 Sq. Dr. Extension Socket 14mm 6 point Length 250mm
SKU: KK-3117M.250-14
MPN: 3117M.250-14
Ko-ken 3117M.250-17 3/8 Sq. Dr. Extension Socket 17mm 6 point Length 250mm
SKU: KK-3117M.250-17
MPN: 3117M.250-17
Ko-ken 3117M.250-19 3/8 Sq. Dr. Extension Socket 19mm 6 point Length 250mm
SKU: KK-3117M.250-19
MPN: 3117M.250-19
Ko-ken 3119-3x5 3/8 Sq. Dr. Wing Bolt Socket Length 30mm
SKU: KK-3119-3x5
MPN: 3119-3x5
Ko-ken 3119-5.5x6 3/8 Sq. Dr. Wing Bolt Socket Length 33mm
SKU: KK-3119-5.5x6
MPN: 3119-5.5x6
Ko-ken 3127-10 3/8 Sq. Dr. Nut Twister 10mm Length 32mm
SKU: KK-3127-10
MPN: 3127-10
Ko-ken 3127-11 3/8 Sq. Dr. Nut Twister 11mm Length 32mm
SKU: KK-3127-11
MPN: 3127-11
Ko-ken 3127-12 3/8 Sq. Dr. Nut Twister 12mm Length 32mm
SKU: KK-3127-12
MPN: 3127-12
Ko-ken 3127-13 3/8 Sq. Dr. Nut Twister 13mm Length 32mm
SKU: KK-3127-13
MPN: 3127-13
Ko-ken 3127-14 3/8 Sq. Dr. Nut Twister 14mm Length 32mm
SKU: KK-3127-14
MPN: 3127-14
Ko-ken 3127-15 3/8 Sq. Dr. Nut Twister 15mm Length 32mm
SKU: KK-3127-15
MPN: 3127-15
Ko-ken 3127-16 3/8 Sq. Dr. Nut Twister 16mm Length 32mm
SKU: KK-3127-16
MPN: 3127-16
Ko-ken 3127-17 3/8 Sq. Dr. Nut Twister 17mm Length 35mm
SKU: KK-3127-17
MPN: 3127-17
Ko-ken 3127-19 3/8 Sq. Dr. Nut Twister 19mm Length 35mm
SKU: KK-3127-19
MPN: 3127-19
Ko-ken 3127-8 3/8 Sq. Dr. Nut Twister 8mm Length 32mm
SKU: KK-3127-8
MPN: 3127-8
Ko-ken 3127-9 3/8 Sq. Dr. Nut Twister 9mm Length 32mm
SKU: KK-3127-9
MPN: 3127-9
Ko-ken 3127-9.5 3/8 Sq. Dr. Nut Twister 9.5mm Length 32mm
SKU: KK-3127-9.5
MPN: 3127-9.5
Ko-ken 3128.80-10 3/8 Sq. Dr. Nut Twister 10mm Length 80mm
SKU: KK-3128.80-10
MPN: 3128.80-10