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 4310M-17 1/2 Sq. Dr. Socket 17mm Surface Length 77mm
SKU: KK-4310M-17
MPN: 4310M-17
Ko-ken 4310M-18 1/2 Sq. Dr. Socket 18mm Surface Length 77mm
SKU: KK-4310M-18
MPN: 4310M-18
Ko-ken 4310M-19 1/2 Sq. Dr. Socket 19mm Surface Length 77mm
SKU: KK-4310M-19
MPN: 4310M-19
Ko-ken 4310M-20 1/2 Sq. Dr. Socket 20mm Surface Length 77mm
SKU: KK-4310M-20
MPN: 4310M-20
Ko-ken 4310M-21 1/2 Sq. Dr. Socket 21mm Surface Length 77mm
SKU: KK-4310M-21
MPN: 4310M-21
Ko-ken 4310M-22 1/2 Sq. Dr. Socket 22mm Surface Length 77mm
SKU: KK-4310M-22
MPN: 4310M-22
Ko-ken 4310M-23 1/2 Sq. Dr. Socket 23mm Surface Length 77mm
SKU: KK-4310M-23
MPN: 4310M-23
Ko-ken 4310M-24 1/2 Sq. Dr. Socket 24mm Surface Length 77mm
SKU: KK-4310M-24
MPN: 4310M-24
Ko-ken 4310M-25 1/2 Sq. Dr. Socket 25mm Surface Length 77mm
SKU: KK-4310M-25
MPN: 4310M-25
Ko-ken 4310M-26 1/2 Sq. Dr. Socket 26mm Surface Length 77mm
SKU: KK-4310M-26
MPN: 4310M-26
Ko-ken 4310M-27 1/2 Sq. Dr. Socket 27mm Surface Length 77mm
SKU: KK-4310M-27
MPN: 4310M-27
Ko-ken 4310M-28 1/2 Sq. Dr. Socket 28mm Surface Length 77mm
SKU: KK-4310M-28
MPN: 4310M-28
Ko-ken 4310M-29 1/2 Sq. Dr. Socket 29mm Surface Length 77mm
SKU: KK-4310M-29
MPN: 4310M-29
Ko-ken 4310M-30 1/2 Sq. Dr. Socket 30mm Surface Length 77mm
SKU: KK-4310M-30
MPN: 4310M-30
Ko-ken 4310M-31 1/2 Sq. Dr. Socket 31mm Surface Length 77mm
SKU: KK-4310M-31
MPN: 4310M-31
Ko-ken 4310M-32 1/2 Sq. Dr. Socket 32mm Surface Length 77mm
SKU: KK-4310M-32
MPN: 4310M-32
Ko-ken 4310M-34 1/2 Sq. Dr. Socket 34mm Surface Length 77mm
SKU: KK-4310M-34
MPN: 4310M-34
Ko-ken 4310M-8 1/2 Sq. Dr. Socket 8mm Surface Length 77mm
SKU: KK-4310M-8
MPN: 4310M-8
Ko-ken 4310M-9 1/2 Sq. Dr. Socket 9mm Surface Length 77mm
SKU: KK-4310M-9
MPN: 4310M-9
Ko-ken 4325(2B)-E10(L140) 1/2 Sq. Dr. Socket TORX E10 Nut Grip Length 140mm
SKU: KK-4325(2B)-E10(L140)
MPN: 4325(2B)-E10(L140)
Ko-ken 4325(2B)-E12(L140) 1/2 Sq. Dr. Socket TORX E12 Nut Grip Length 140mm
SKU: KK-4325(2B)-E12(L140)
MPN: 4325(2B)-E12(L140)
Ko-ken 4325(2B)-E14(L140) 1/2 Sq. Dr. Socket TORX E14 Nut Grip Length 140mm
SKU: KK-4325(2B)-E14(L140)
MPN: 4325(2B)-E14(L140)
Ko-ken 4325(2B)-E8(L140) 1/2 Sq. Dr. Socket TORX E8 Nut Grip Length 140mm
SKU: KK-4325(2B)-E8(L140)
MPN: 4325(2B)-E8(L140)
Ko-ken 4325-E10 1/2 Sq. Dr. Socket TORX E10 Length 77mm
SKU: KK-4325-E10
MPN: 4325-E10