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 4117M.125-17 1/2 Sq. Dr. Extension Socket 17mm 6 point Length 125mm
SKU: KK-4117M.125-17
MPN: 4117M.125-17
Ko-ken 4117M.125-19 1/2 Sq. Dr. Extension Socket 19mm 6 point Length 125mm
SKU: KK-4117M.125-19
MPN: 4117M.125-19
Ko-ken 4117M.125-21 1/2 Sq. Dr. Extension Socket 21mm 6 point Length 125mm
SKU: KK-4117M.125-21
MPN: 4117M.125-21
Ko-ken 4117M.125-22 1/2 Sq. Dr. Extension Socket 22mm 6 point Length 125mm
SKU: KK-4117M.125-22
MPN: 4117M.125-22
Ko-ken 4117M.125-24 1/2 Sq. Dr. Extension Socket 24mm 6 point Length 125mm
SKU: KK-4117M.125-24
MPN: 4117M.125-24
Ko-ken 4117M.125-27 1/2 Sq. Dr. Extension Socket 27mm 6 point Length 125mm
SKU: KK-4117M.125-27
MPN: 4117M.125-27
Ko-ken 4117M.125-30 1/2 Sq. Dr. Extension Socket 30mm 6 point Length 125mm
SKU: KK-4117M.125-30
MPN: 4117M.125-30
Ko-ken 4117M.125-32 1/2 Sq. Dr. Extension Socket 32mm 6 point Length 125mm
SKU: KK-4117M.125-32
MPN: 4117M.125-32
Ko-ken 4117M.250-13 1/2 Sq. Dr. Extension Socket 13mm 6 point Length 250mm
SKU: KK-4117M.250-13
MPN: 4117M.250-13
Ko-ken 4117M.250-14 1/2 Sq. Dr. Extension Socket 14mm 6 point Length 250mm
SKU: KK-4117M.250-14
MPN: 4117M.250-14
Ko-ken 4117M.250-17 1/2 Sq. Dr. Extension Socket 17mm 6 point Length 250mm
SKU: KK-4117M.250-17
MPN: 4117M.250-17
Ko-ken 4117M.250-19 1/2 Sq. Dr. Extension Socket 19mm 6 point Length 250mm
SKU: KK-4117M.250-19
MPN: 4117M.250-19
Ko-ken 4117M.250-21 1/2 Sq. Dr. Extension Socket 21mm 6 point Length 250mm
SKU: KK-4117M.250-21
MPN: 4117M.250-21
Ko-ken 4117M.250-22 1/2 Sq. Dr. Extension Socket 22mm 6 point Length 250mm
SKU: KK-4117M.250-22
MPN: 4117M.250-22
Ko-ken 4117M.250-24 1/2 Sq. Dr. Extension Socket 24mm 6 point Length 250mm
SKU: KK-4117M.250-24
MPN: 4117M.250-24
Ko-ken 4117M.250-27 1/2 Sq. Dr. Extension Socket 27mm 6 point Length 250mm
SKU: KK-4117M.250-27
MPN: 4117M.250-27
Ko-ken 4117M.250-32 1/2 Sq. Dr. Extension Socket 32mm 6 point Length 250mm
SKU: KK-4117M.250-32
MPN: 4117M.250-32
Ko-ken 4122.72-22 1/2 Sq. Dr. Socket 4 teeth Length 72mm For Deisel injection holder nut
SKU: KK-4122.72-22
MPN: 4122.72-22
Ko-ken 4127-14 1/2 Sq. Dr. Nut Twister 14mm Length 42mm
SKU: KK-4127-14
MPN: 4127-14
Ko-ken 4127-17 1/2 Sq. Dr. Nut Twister 17mm Length 42mm
SKU: KK-4127-17
MPN: 4127-17
Ko-ken 4127-19 1/2 Sq. Dr. Nut Twister 19mm Length 42mm
SKU: KK-4127-19
MPN: 4127-19
Ko-ken 4127-21 1/2 Sq. Dr. Nut Twister 21mm Length 42mm
SKU: KK-4127-21
MPN: 4127-21
Ko-ken 4127-22 1/2 Sq. Dr. Nut Twister 22mm Length 42mm
SKU: KK-4127-22
MPN: 4127-22
Ko-ken 4127-24 1/2 Sq. Dr. Nut Twister 24mm Length 42mm
SKU: KK-4127-24
MPN: 4127-24