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Ko-Ken

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.


Ko-ken United states distributors

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 3769N-160 3/8 Sq. Dr. Spinner Handle Length 160mm

Ko-ken 3769N-160 3/8 Sq. Dr. Spinner Handle Length 160mm

SKU: KK-3769N-160
MPN: 3769N-160

Save $3.72
Ko-ken 3769N-230 3/8 Sq. Dr. Spinner Handle Length 230mm

Ko-ken 3769N-230 3/8 Sq. Dr. Spinner Handle Length 230mm

SKU: KK-3769N-230
MPN: 3769N-230

Save $4.19
Ko-ken 3769NWF-160 3/8 Sq. Dr. Spinner Handle Wobble-Fix Length 160mm

Ko-ken 3769NWF-160 3/8 Sq. Dr. Spinner Handle Wobble-Fix Length 160mm

SKU: KK-3769NWF-160
MPN: 3769NWF-160

Save $4.18
Ko-ken 3769NWF-230 3/8 Sq. Dr. Spinner Handle Wobble-Fix Length 230mm

Ko-ken 3769NWF-230 3/8 Sq. Dr. Spinner Handle Wobble-Fix Length 230mm

SKU: KK-3769NWF-230
MPN: 3769NWF-230

Save $4.77
Ko-ken 3771Z 3/8 Sq. Dr. Universal Joint 3/8 Square Length 42.5mm Z-series

Ko-ken 3771Z 3/8 Sq. Dr. Universal Joint 3/8 Square Length 42.5mm Z-series

SKU: KK-3771Z
MPN: 3771Z

Save $6.69
Ko-ken 3772Z 3/8 Sq. Dr. Universal Double Joint 3/8 Square Length 65mm Z-series

Ko-ken 3772Z 3/8 Sq. Dr. Universal Double Joint 3/8 Square Length 65mm Z-series

SKU: KK-3772Z
MPN: 3772Z

Save $10.70
Ko-ken 3774J 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 285mm Plastic Handle

Ko-ken 3774J 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 285mm Plastic Handle

SKU: KK-3774J
MPN: 3774J

Save $19.93
Ko-ken 3774JB 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 285mm Push Button Plastic Handle

Ko-ken 3774JB 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 285mm Push Button Plastic Handle

SKU: KK-3774JB
MPN: 3774JB

Save $22.13
Ko-ken 3774JBL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 285mm Push Button Plastic Handle

Ko-ken 3774JBL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 285mm Push Button Plastic Handle

SKU: KK-3774JBL
MPN: 3774JBL

Save $27.59
Ko-ken 3774JL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 285mm Plastic Handle

Ko-ken 3774JL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 285mm Plastic Handle

SKU: KK-3774JL
MPN: 3774JL

Save $24.86
Ko-ken 3774N 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Metal Handle

Ko-ken 3774N 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Metal Handle

SKU: KK-3774N
MPN: 3774N

Save $17.83
Ko-ken 3774NB 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Push Button Metal Handle

Ko-ken 3774NB 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Push Button Metal Handle

SKU: KK-3774NB
MPN: 3774NB

Save $19.09
Ko-ken 3774NL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 265mm Metal Handle

Ko-ken 3774NL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 265mm Metal Handle

SKU: KK-3774NL
MPN: 3774NL

Save $22.45
Ko-ken 3774P 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Polished Handle

Ko-ken 3774P 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Polished Handle

SKU: KK-3774P
MPN: 3774P

Save $19.93
Ko-ken 3774P-SR 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 310mm Polished Handle

Ko-ken 3774P-SR 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 310mm Polished Handle

SKU: KK-3774P-SR
MPN: 3774P-SR

Save $25.81
Ko-ken 3774PB 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Push Button Polished Handle

Ko-ken 3774PB 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 265mm Push Button Polished Handle

SKU: KK-3774PB
MPN: 3774PB

Save $21.51
Ko-ken 3774PL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 265mm Polished Handle

Ko-ken 3774PL 3/8 Sq. Dr. Ratchet Handle 24 teeth Locking Flexible Head Length 265mm Polished Handle

SKU: KK-3774PL
MPN: 3774PL

Save $24.55
Ko-ken 3774PS 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 175mm Polished Handle

Ko-ken 3774PS 3/8 Sq. Dr. Ratchet Handle 24 teeth Flexible Head Length 175mm Polished Handle

SKU: KK-3774PS
MPN: 3774PS

Save $19.93
Ko-ken 3776J 3/8 Sq. Dr. Ratchet Handle 45 teeth Swivel Head Length 280mm Plastic Handle

Ko-ken 3776J 3/8 Sq. Dr. Ratchet Handle 45 teeth Swivel Head Length 280mm Plastic Handle

SKU: KK-3776J
MPN: 3776J

Save $31.57
Ko-ken 3776N 3/8 Sq. Dr. Ratchet Handle 45 teeth Swivel Head Length 280mm Metal Handle

Ko-ken 3776N 3/8 Sq. Dr. Ratchet Handle 45 teeth Swivel Head Length 280mm Metal Handle

SKU: KK-3776N
MPN: 3776N

Save $31.06
Ko-ken 3776P 3/8 Sq. Dr. Ratchet Handle 45 teeth Swivel Head Length 280mm Polished Handle

Ko-ken 3776P 3/8 Sq. Dr. Ratchet Handle 45 teeth Swivel Head Length 280mm Polished Handle

SKU: KK-3776P
MPN: 3776P

Save $31.57
Ko-ken 4000.60-2 1/2 Sq. Dr. Bit Socket PH2 Length 60mm

Ko-ken 4000.60-2 1/2 Sq. Dr. Bit Socket PH2 Length 60mm

SKU: KK-4000.60-2
MPN: 4000.60-2

Save $2.72
Ko-ken 4000.60-3 1/2 Sq. Dr. Bit Socket PH3 Length 60mm

Ko-ken 4000.60-3 1/2 Sq. Dr. Bit Socket PH3 Length 60mm

SKU: KK-4000.60-3
MPN: 4000.60-3

Save $2.72
Ko-ken 4000.60-4 1/2 Sq. Dr. Bit Socket PH4 Length 60mm

Ko-ken 4000.60-4 1/2 Sq. Dr. Bit Socket PH4 Length 60mm

SKU: KK-4000.60-4
MPN: 4000.60-4

Save $2.72