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 S/B82 1" O Ring (50 pieces)
SKU: KK-S/B82
MPN: S/B82
Ko-ken S/C31 3/8" C Ring (100 pieces)
SKU: KK-S/C31
MPN: S/C31
Ko-ken S/C32 3/8" C-Ring (100 pieces)
SKU: KK-S/C32
MPN: S/C32
Ko-ken S/C41 1/2" C Ring (100 pieces)
SKU: KK-S/C41
MPN: S/C41
Ko-ken S/C42 1/2" C-Ring (100 pcs.)
SKU: KK-S/C42
MPN: S/C42
Ko-ken S/C61 3/4" C Ring (100 pieces)
SKU: KK-S/C61
MPN: S/C61
Ko-ken S/C81 1" C Ring (100 pieces)
SKU: KK-S/C81
MPN: S/C81
Ko-ken S/C82 1" C Ring (50 pieces)
SKU: KK-S/C82
MPN: S/C82
Ko-ken S14240M-00 1/2 Sq. Dr. Socket Set 5-19mm 6 point 10 pieces
SKU: KK-S14240M-00
MPN: S14240M-00
Ko-ken S3240A-00 3/8 Sq. Dr. Socket set 6 point 126 pieces
SKU: KK-S3240A-00
MPN: S3240A-00
Ko-ken S3240A-05 3/8 Sq. Dr. Socket set 12 point 126 pieces
SKU: KK-S3240A-05
MPN: S3240A-05
Ko-ken S3240M-00 3/8 Sq. Dr. Socket set 6 point 177 pieces
SKU: KK-S3240M-00
MPN: S3240M-00
Ko-ken S4240A-00 1/2 Sq. Dr. Socket set 6 point 103 pieces
SKU: KK-S4240A-00
MPN: S4240A-00
Ko-ken S4240A-05 1/2 Sq. Dr. Socket set 12 point 103 pieces
SKU: KK-S4240A-05
MPN: S4240A-05
Ko-ken S4240M-00 1/2 Sq. Dr. Socket set 6 point 117 pieces
SKU: KK-S4240M-00
MPN: S4240M-00
Ko-ken S4240M-05 1/2 Sq. Dr. Socket set 12 point 117 pieces
SKU: KK-S4240M-05
MPN: S4240M-05
Ko-ken SP4122.69-22 1/2 Sq. Dr. Socket 4 teeth 69mm For Deisel injection holder nut
SKU: KK-SP4122.69-22
MPN: SP4122.69-22
Ko-ken SP4300M.110-22 1/2 Sq. Dr. Socket 22mm 6 point 110mm For O2 sensor
SKU: KK-SP4300M.110-22
MPN: SP4300M.110-22
Ko-ken SP4300M.85-22 1/2 Sq. Dr. Socket 22mm 6 point 85mm For O2 sensor
SKU: KK-SP4300M.85-22
MPN: SP4300M.85-22
Ko-ken SP4305M.77-27 1/2 Sq. Dr. Socket 27mm 77mm For fuel injection pump
SKU: KK-SP4305M.77-27
MPN: SP4305M.77-27
Ko-ken ST4027.140-00 1/2 Sq. Dr. Bit Socket 140mm For Cylinder head bolt
SKU: KK-ST4027.140-00
MPN: ST4027.140-00
Ko-ken TI4261M Socket set 6 point Titanium 18 pieces
SKU: KK-TI4261M
MPN: TI4261M