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 4127-25.4 1/2 Sq. Dr. Nut Twister 25.4mm Length 42mm
SKU: KK-4127-25.4
MPN: 4127-25.4
Ko-ken 4128.120-17 1/2 Sq. Dr. Nut Twister 17mm Length 120mm
SKU: KK-4128.120-17
MPN: 4128.120-17
Ko-ken 4128.120-19 1/2 Sq. Dr. Nut Twister 19mm Length 120mm
SKU: KK-4128.120-19
MPN: 4128.120-19
Ko-ken 4128.120-21 1/2 Sq. Dr. Nut Twister 21mm Length 120mm
SKU: KK-4128.120-21
MPN: 4128.120-21
Ko-ken 4128.120-22 1/2 Sq. Dr. Nut Twister 22mm Length 120mm
SKU: KK-4128.120-22
MPN: 4128.120-22
Ko-ken 4129.37-10 1/2 Sq. Dr. Bolt Twister 10mm Length 37mm
SKU: KK-4129.37-10
MPN: 4129.37-10
Ko-ken 4129.37-12 1/2 Sq. Dr. Bolt Twister 12mm Length 37mm
SKU: KK-4129.37-12
MPN: 4129.37-12
Ko-ken 4129.37-14 1/2 Sq. Dr. Bolt Twister 14mm Length 37mm
SKU: KK-4129.37-14
MPN: 4129.37-14
Ko-ken 4129.37-16 1/2 Sq. Dr. Bolt Twister 16mm Length 37mm
SKU: KK-4129.37-16
MPN: 4129.37-16
Ko-ken 4129.37-8 1/2 Sq. Dr. Bolt Twister 8mm Length 37mm
SKU: KK-4129.37-8
MPN: 4129.37-8
Ko-ken 4129.75-10 1/2 Sq. Dr. Bolt Twister 10mm Length 75mm
SKU: KK-4129.75-10
MPN: 4129.75-10
Ko-ken 4129.75-12 1/2 Sq. Dr. Bolt Twister 12mm Length 75mm
SKU: KK-4129.75-12
MPN: 4129.75-12
Ko-ken 4129.75-14 1/2 Sq. Dr. Bolt Twister 14mm Length 75mm
SKU: KK-4129.75-14
MPN: 4129.75-14
Ko-ken 4129.75-16 1/2 Sq. Dr. Bolt Twister 16mm Length 75mm
SKU: KK-4129.75-16
MPN: 4129.75-16
Ko-ken 4129.75-8 1/2 Sq. Dr. Bolt Twister 8mm Length 75mm
SKU: KK-4129.75-8
MPN: 4129.75-8
Ko-ken 4131A-3 1/2 Sq. Dr. Adjustable Tap Holder Min. 5.5mm Max. 1.2mm Length 69mm
SKU: KK-4131A-3
MPN: 4131A-3
Ko-ken 4132-25 1/2 Sq. Dr. Die Holder 25mm Length 60mm
SKU: KK-4132-25
MPN: 4132-25
Ko-ken 4132-38 1/2 Sq. Dr. Die Holder 38mm Length 80mm
SKU: KK-4132-38
MPN: 4132-38
Ko-ken 4132-50 1/2 Sq. Dr. Die Holder 50mm Length 105mm
SKU: KK-4132-50
MPN: 4132-50
Ko-ken 4203M 1/2 Sq. Dr. Stud Bolt Setter set M6-M12 4 pieces
SKU: KK-4203M
MPN: 4203M
Ko-ken 4203MF 1/2 Sq. Dr. Stud Bolt Setter set M6-M12 Fine pitch thread 4 pieces
SKU: KK-4203MF
MPN: 4203MF
Ko-ken 4211A 1/2 Sq. Dr. Stud puller set 1/4-1/2 4 pieces
SKU: KK-4211A
MPN: 4211A
Ko-ken 4211M 1/2 Sq. Dr. Stud puller set 6mm-12mm 4 pieces
SKU: KK-4211M
MPN: 4211M
Ko-ken 4214M 1/2 Sq. Dr. Stud puller set 6mm-14mm 5 pieces
SKU: KK-4214M
MPN: 4214M