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 RS4325/7 1/2 Sq. Dr. Socket set TORX E10-E24 200mm 7 pieces
SKU: KK-RS4325/7
MPN: RS4325/7
Ko-ken RS4400A/10 1/2 Sq. Dr. Socket Set 3/8-15/16 6 point 300mm 10 pieces
SKU: KK-RS4400A/10
MPN: RS4400A/10
Ko-ken RS4400LH/6 1/2 Sq. Dr. Socket set 6S-16S 200mm 6 pieces
SKU: KK-RS4400LH/6
MPN: RS4400LH/6
Ko-ken RS4400M/10 1/2 Sq. Dr. Socket Set 10-22mm 6 point 300mm 10 pieces
SKU: KK-RS4400M/10
MPN: RS4400M/10
Ko-ken RS4400MZ/10 1/2 Sq. Dr. Socket set 10-27mm 6 point 300mm Z-series 10 pieces
SKU: KK-RS4400MZ/10
MPN: RS4400MZ/10
Ko-ken RS4400W/8 1/2 Sq. Dr. Socket Set Whitworth 3/16-5/8 6 point 250mm 8 pieces
SKU: KK-RS4400W/8
MPN: RS4400W/8
Ko-ken RS4405A/10 1/2 Sq. Dr. Socket Set 3/8-15/16 12 point 300mm 10 pieces
SKU: KK-RS4405A/10
MPN: RS4405A/10
Ko-ken RS4405M/10 1/2 Sq. Dr. Socket Set 10-22mm 12 point 300mm 10 pieces
SKU: KK-RS4405M/10
MPN: RS4405M/10
Ko-ken RS4405W/8 1/2 Sq. Dr. Socket Set Whitworth 3/16-5/8 12 point 250mm 8 pieces
SKU: KK-RS4405W/8
MPN: RS4405W/8
Ko-ken RS4410M/10 1/2 Sq. Dr. Socket set 10-22mm Surface 300mm 10 pieces
SKU: KK-RS4410M/10
MPN: RS4410M/10
Ko-ken RS4425/6-EPL 1/2 Sq. Dr. Socket set TORXPLUS 10EPL-20EPL Low Profile 200mm 6 pieces
SKU: KK-RS4425/6-EPL
MPN: RS4425/6-EPL
Ko-ken RS4425/6-N 1/2 Sq. Dr. Socket set TORX E10N-E20N Low Profile 200mm 6 pieces
SKU: KK-RS4425/6-N
MPN: RS4425/6-N
Ko-ken RS4425/7 1/2 Sq. Dr. Socket set TORX E10-E24 200mm 7 pieces
SKU: KK-RS4425/7
MPN: RS4425/7
Ko-ken RS4450M/10 1/2 Sq. Dr. Socket set 10-22mm Nut Grip 300mm 10 pieces
SKU: KK-RS4450M/10
MPN: RS4450M/10
Ko-ken RSAL-200 Magnetic Aluminum Rail 200mm
SKU: KK-RSAL-200
MPN: RSAL-200
Ko-ken RSAL-300 Magnetic Aluminum Rail 300mm
SKU: KK-RSAL-300
MPN: RSAL-300
Ko-ken RSAL-400 Magnetic Aluminum Rail 400mm
SKU: KK-RSAL-400
MPN: RSAL-400
Ko-ken RSAL200-1/4X12 Magnetic Aluminum Rail 1/4 Plastic Clip x 12 pieces 200mm
SKU: KK-RSAL200-1/4X12
MPN: RSAL200-1/4X12
Ko-ken RSAL200-3/8X8 Magnetic Aluminum Rail 3/8 Plastic Clip x 8 pieces 200mm
SKU: KK-RSAL200-3/8X8
MPN: RSAL200-3/8X8
Ko-ken RSAL300-1/2X10 Magnetic Aluminum Rail 1/2 Plastic Clip x 10 pieces 300mm
SKU: KK-RSAL300-1/2X10
MPN: RSAL300-1/2X10
Ko-ken RSAL300-3/8X12 Magnetic Aluminum Rail 3/8 Plastic Clip x 12 pieces 300mm
SKU: KK-RSAL300-3/8X12
MPN: RSAL300-3/8X12
Ko-ken RSAS2305A/10 1/4 Sq. Dr. Socket set 3/16-9/16 12 point 150mm Aerospace 10 pieces
SKU: KK-RSAS2305A/10
MPN: RSAS2305A/10
Ko-ken RSAS2405A/10 1/4 Sq. Dr. Socket set 3/16-9/16 12 point 150mm Aerospace 10 pieces
SKU: KK-RSAS2405A/10
MPN: RSAS2405A/10
Ko-ken RSX025/11-IP 1/4, 3/8, 1/2 Sq. Dr. Bit Socket set TORXPLUS 10IP-60IP 200mm 11 pieces
SKU: KK-RSX025/11-IP
MPN: RSX025/11-IP