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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 14401A-1.1/4 1/2 Sq. Dr. Socket 1.1/4 6 point Length 42mm Thin walled

Ko-ken 14401A-1.1/4 1/2 Sq. Dr. Socket 1.1/4 6 point Length 42mm Thin walled

SKU: KK-14401A-1.1/4
MPN: 14401A-1.1/4

Save $7.90
Ko-ken 14401A-1.1/8 1/2 Sq. Dr. Socket 1.1/8 6 point Length 42mm Thin walled

Ko-ken 14401A-1.1/8 1/2 Sq. Dr. Socket 1.1/8 6 point Length 42mm Thin walled

SKU: KK-14401A-1.1/8
MPN: 14401A-1.1/8

Save $6.55
Ko-ken 14401A-1.3/16 1/2 Sq. Dr. Socket 1.3/16 6 point Length 42mm Thin walled

Ko-ken 14401A-1.3/16 1/2 Sq. Dr. Socket 1.3/16 6 point Length 42mm Thin walled

SKU: KK-14401A-1.3/16
MPN: 14401A-1.3/16

Save $7.09
Ko-ken 14401A-1.3/8 1/2 Sq. Dr. Socket 1.3/8 6 point Length 46mm Thin walled

Ko-ken 14401A-1.3/8 1/2 Sq. Dr. Socket 1.3/8 6 point Length 46mm Thin walled

SKU: KK-14401A-1.3/8
MPN: 14401A-1.3/8

Save $11.79
Ko-ken 14401A-1.5/16 1/2 Sq. Dr. Socket 1.5/16 6 point Length 46mm Thin walled

Ko-ken 14401A-1.5/16 1/2 Sq. Dr. Socket 1.5/16 6 point Length 46mm Thin walled

SKU: KK-14401A-1.5/16
MPN: 14401A-1.5/16

Save $11.52
Ko-ken 14401A-1/2 1/2 Sq. Dr. Socket 1/2 6 point Length 38mm Thin walled

Ko-ken 14401A-1/2 1/2 Sq. Dr. Socket 1/2 6 point Length 38mm Thin walled

SKU: KK-14401A-1/2
MPN: 14401A-1/2

Save $3.83
Ko-ken 14401A-1/4 1/2 Sq. Dr. Socket 1/4 6 point Length 38mm Thin walled

Ko-ken 14401A-1/4 1/2 Sq. Dr. Socket 1/4 6 point Length 38mm Thin walled

SKU: KK-14401A-1/4
MPN: 14401A-1/4

Save $3.63
Ko-ken 14401A-11/16 1/2 Sq. Dr. Socket 11/16 6 point Length 38mm Thin walled

Ko-ken 14401A-11/16 1/2 Sq. Dr. Socket 11/16 6 point Length 38mm Thin walled

SKU: KK-14401A-11/16
MPN: 14401A-11/16

Save $4.42
Ko-ken 14401A-13/16 1/2 Sq. Dr. Socket 13/16 6 point Length 38mm Thin walled

Ko-ken 14401A-13/16 1/2 Sq. Dr. Socket 13/16 6 point Length 38mm Thin walled

SKU: KK-14401A-13/16
MPN: 14401A-13/16

Save $4.85
Ko-ken 14401A-15/16 1/2 Sq. Dr. Socket 15/16 6 point Length 38mm Thin walled

Ko-ken 14401A-15/16 1/2 Sq. Dr. Socket 15/16 6 point Length 38mm Thin walled

SKU: KK-14401A-15/16
MPN: 14401A-15/16

Save $5.33
Ko-ken 14401A-3/4 1/2 Sq. Dr. Socket 3/4 6 point Length 38mm Thin walled

Ko-ken 14401A-3/4 1/2 Sq. Dr. Socket 3/4 6 point Length 38mm Thin walled

SKU: KK-14401A-3/4
MPN: 14401A-3/4

Save $4.42
Ko-ken 14401A-3/8 1/2 Sq. Dr. Socket 3/8 6 point Length 38mm Thin walled

Ko-ken 14401A-3/8 1/2 Sq. Dr. Socket 3/8 6 point Length 38mm Thin walled

SKU: KK-14401A-3/8
MPN: 14401A-3/8

Save $3.83
Ko-ken 14401A-5/16 1/2 Sq. Dr. Socket 5/16 6 point Length 38mm Thin walled

Ko-ken 14401A-5/16 1/2 Sq. Dr. Socket 5/16 6 point Length 38mm Thin walled

SKU: KK-14401A-5/16
MPN: 14401A-5/16

Save $3.83
Ko-ken 14401A-5/8 1/2 Sq. Dr. Socket 5/8 6 point Length 38mm Thin walled

Ko-ken 14401A-5/8 1/2 Sq. Dr. Socket 5/8 6 point Length 38mm Thin walled

SKU: KK-14401A-5/8
MPN: 14401A-5/8

Save $4.42
Ko-ken 14401A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 38mm Thin walled

Ko-ken 14401A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 38mm Thin walled

SKU: KK-14401A-7/16
MPN: 14401A-7/16

Save $3.83
Ko-ken 14401A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 38mm Thin walled

Ko-ken 14401A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 38mm Thin walled

SKU: KK-14401A-7/8
MPN: 14401A-7/8

Save $4.85
Ko-ken 14401A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 38mm Thin walled

Ko-ken 14401A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 38mm Thin walled

SKU: KK-14401A-9/16
MPN: 14401A-9/16

Save $3.83
Ko-ken 14401LH-10S 1/2 Sq. Dr. Socket 10S Length 38mm

Ko-ken 14401LH-10S 1/2 Sq. Dr. Socket 10S Length 38mm

SKU: KK-14401LH-10S
MPN: 14401LH-10S

Save $4.61
Ko-ken 14401LH-12S 1/2 Sq. Dr. Socket 12S Length 38mm

Ko-ken 14401LH-12S 1/2 Sq. Dr. Socket 12S Length 38mm

SKU: KK-14401LH-12S
MPN: 14401LH-12S

Save $4.93
Ko-ken 14401LH-14S 1/2 Sq. Dr. Socket 14S Length 38mm

Ko-ken 14401LH-14S 1/2 Sq. Dr. Socket 14S Length 38mm

SKU: KK-14401LH-14S
MPN: 14401LH-14S

Save $5.32
Ko-ken 14401LH-16S 1/2 Sq. Dr. Socket 16S Length 38mm

Ko-ken 14401LH-16S 1/2 Sq. Dr. Socket 16S Length 38mm

SKU: KK-14401LH-16S
MPN: 14401LH-16S

Save $5.85
Ko-ken 14401LH-6S 1/2 Sq. Dr. Socket 6S Length 38mm

Ko-ken 14401LH-6S 1/2 Sq. Dr. Socket 6S Length 38mm

SKU: KK-14401LH-6S
MPN: 14401LH-6S

Save $4.61
Ko-ken 14401LH-8S 1/2 Sq. Dr. Socket 8S Length 38mm

Ko-ken 14401LH-8S 1/2 Sq. Dr. Socket 8S Length 38mm

SKU: KK-14401LH-8S
MPN: 14401LH-8S

Save $4.61
Ko-ken 14401M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 38mm Thin walled

Ko-ken 14401M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 38mm Thin walled

SKU: KK-14401M-10
MPN: 14401M-10

Save $3.50