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 AS2405A-3/16 1/4 Sq. Dr. Socket 3/16 12 point 22mm Aerospace
SKU: KK-AS2405A-3/16
MPN: AS2405A-3/16
Ko-ken AS2405A-3/8 1/4 Sq. Dr. Socket 3/8 12 point 22mm Aerospace
SKU: KK-AS2405A-3/8
MPN: AS2405A-3/8
Ko-ken AS2405A-5/16 1/4 Sq. Dr. Socket 5/16 12 point 22mm Aerospace
SKU: KK-AS2405A-5/16
MPN: AS2405A-5/16
Ko-ken AS2405A-7/16 1/4 Sq. Dr. Socket 7/16 12 point 22mm Aerospace
SKU: KK-AS2405A-7/16
MPN: AS2405A-7/16
Ko-ken AS2405A-7/32 1/4 Sq. Dr. Socket 7/32 12 point 22mm Aerospace
SKU: KK-AS2405A-7/32
MPN: AS2405A-7/32
Ko-ken AS2405A-9/16 1/4 Sq. Dr. Socket 9/16 12 point 24mm Aerospace
SKU: KK-AS2405A-9/16
MPN: AS2405A-9/16
Ko-ken AS2405A-9/32 1/4 Sq. Dr. Socket 9/32 12 point 22mm Aerospace
SKU: KK-AS2405A-9/32
MPN: AS2405A-9/32
Ko-ken AS2445A-1/2 1/4 Sq. Dr. Universal Socket 1/2 12 point 40.1mm Aerospace
SKU: KK-AS2445A-1/2
MPN: AS2445A-1/2
Ko-ken AS2445A-1/4 1/4 Sq. Dr. Universal Socket 1/4 12 point 31.8mm Aerospace
SKU: KK-AS2445A-1/4
MPN: AS2445A-1/4
Ko-ken AS2445A-3/8 1/4 Sq. Dr. Universal Socket 3/8 12 point 35.1mm Aerospace
SKU: KK-AS2445A-3/8
MPN: AS2445A-3/8
Ko-ken AS2445A-5/16 1/4 Sq. Dr. Universal Socket 5/16 12 point 34.6mm Aerospace
SKU: KK-AS2445A-5/16
MPN: AS2445A-5/16
Ko-ken AS2445A-7/16 1/4 Sq. Dr. Universal Socket 7/16 12 point 39.1mm Aerospace
SKU: KK-AS2445A-7/16
MPN: AS2445A-7/16
Ko-ken B01 3.1/2” Sq.Dr. Socket O Ring
SKU: KK-B01
MPN: B01
Ko-ken B02 O Ring
SKU: KK-B02
MPN: B02
Ko-ken BD003E-I 1/4 Hex Dr. Form Tie 70mm
SKU: KK-BD003E-I
MPN: BD003E-I
Ko-ken BD004-12.5x10 1/2 Sq. Dr. Stud Puller 10mm 70mm
SKU: KK-BD004-12.5x10
MPN: BD004-12.5x10
Ko-ken BD004-12.5x13 1/2 Sq. Dr. Stud Puller 13mm 75mm
SKU: KK-BD004-12.5x13
MPN: BD004-12.5x13
Ko-ken BD004-12.5x16 1/2 Sq. Dr. Stud Puller 16mm 75mm
SKU: KK-BD004-12.5x16
MPN: BD004-12.5x16
Ko-ken BD004-20x19 3/4 Sq. Dr. Stud Puller 19mm 90mm
SKU: KK-BD004-20x19
MPN: BD004-20x19
Ko-ken BD004-20x22 3/4 Sq. Dr. Stud Puller 22mm 90mm
SKU: KK-BD004-20x22
MPN: BD004-20x22
Ko-ken BD004-20x25 3/4 Sq. Dr. Stud Puller 25mm 95mm
SKU: KK-BD004-20x25
MPN: BD004-20x25
Ko-ken BD004-20x29 3/4 Sq. Dr. Stud Puller 29mm 95mm
SKU: KK-BD004-20x29
MPN: BD004-20x29
Ko-ken BD008E.165-19(12P) 1/4 Hex Dr. Long Socket 19mm 12 point 165mm
SKU: KK-BD008E.165-19(12P)
MPN: BD008E.165-19(12P)