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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 10400A-5.5/8 3.1/2 Sq. Dr. Socket 5.5/8 6 point Length 208mm

Ko-ken 10400A-5.5/8 3.1/2 Sq. Dr. Socket 5.5/8 6 point Length 208mm

SKU: KK-10400A-5.5/8
MPN: 10400A-5.5/8

Save $1,094.49
Ko-ken 10400A-5.7/8 3.1/2 Sq. Dr. Socket 5.7/8 6 point Length 212mm

Ko-ken 10400A-5.7/8 3.1/2 Sq. Dr. Socket 5.7/8 6 point Length 212mm

SKU: KK-10400A-5.7/8
MPN: 10400A-5.7/8

Save $1,153.12
Ko-ken 10400A-6 3.1/2 Sq. Dr. Socket 6 6 point Length 214mm

Ko-ken 10400A-6 3.1/2 Sq. Dr. Socket 6 6 point Length 214mm

SKU: KK-10400A-6
MPN: 10400A-6

Save $1,153.12
Ko-ken 10400A-6.1/2 3.1/2 Sq. Dr. Socket 6.1/2 6 point Length 224mm

Ko-ken 10400A-6.1/2 3.1/2 Sq. Dr. Socket 6.1/2 6 point Length 224mm

SKU: KK-10400A-6.1/2
MPN: 10400A-6.1/2

Save $1,320.65
Ko-ken 10400A-6.1/4 3.1/2 Sq. Dr. Socket 6.1/4 6 point Length 218mm

Ko-ken 10400A-6.1/4 3.1/2 Sq. Dr. Socket 6.1/4 6 point Length 218mm

SKU: KK-10400A-6.1/4
MPN: 10400A-6.1/4

Save $1,253.64
Ko-ken 10400A-6.1/8 3.1/2 Sq. Dr. Socket 6.1/8 6 point Length 216mm

Ko-ken 10400A-6.1/8 3.1/2 Sq. Dr. Socket 6.1/8 6 point Length 216mm

SKU: KK-10400A-6.1/8
MPN: 10400A-6.1/8

Save $1,253.64
Ko-ken 10400A-6.3/4 3.1/2 Sq. Dr. Socket 6.3/4 6 point Length 228mm

Ko-ken 10400A-6.3/4 3.1/2 Sq. Dr. Socket 6.3/4 6 point Length 228mm

SKU: KK-10400A-6.3/4
MPN: 10400A-6.3/4

Save $1,391.85
Ko-ken 10400A-6.3/8 3.1/2 Sq. Dr. Socket 6.3/8 6 point Length 221mm

Ko-ken 10400A-6.3/8 3.1/2 Sq. Dr. Socket 6.3/8 6 point Length 221mm

SKU: KK-10400A-6.3/8
MPN: 10400A-6.3/8

Save $1,253.64
Ko-ken 10400A-6.5/8 3.1/2 Sq. Dr. Socket 6.5/8 6 point Length 226mm

Ko-ken 10400A-6.5/8 3.1/2 Sq. Dr. Socket 6.5/8 6 point Length 226mm

SKU: KK-10400A-6.5/8
MPN: 10400A-6.5/8

Save $1,320.65
Ko-ken 10400A-6.7/8 3.1/2 Sq. Dr. Socket 6.7/8 6 point Length 230mm

Ko-ken 10400A-6.7/8 3.1/2 Sq. Dr. Socket 6.7/8 6 point Length 230mm

SKU: KK-10400A-6.7/8
MPN: 10400A-6.7/8

Save $1,465.84
Ko-ken 10400A-7 3.1/2 Sq. Dr. Socket 7 6 point Length 232mm

Ko-ken 10400A-7 3.1/2 Sq. Dr. Socket 7 6 point Length 232mm

SKU: KK-10400A-7
MPN: 10400A-7

Save $1,465.84
Ko-ken 10400A-7.1/2 3.1/2 Sq. Dr. Socket 7.1/2 6 point Length 240mm

Ko-ken 10400A-7.1/2 3.1/2 Sq. Dr. Socket 7.1/2 6 point Length 240mm

SKU: KK-10400A-7.1/2
MPN: 10400A-7.1/2

Save $1,800.88
Ko-ken 10400A-7.1/4 3.1/2 Sq. Dr. Socket 7.1/4 6 point Length 236mm

Ko-ken 10400A-7.1/4 3.1/2 Sq. Dr. Socket 7.1/4 6 point Length 236mm

SKU: KK-10400A-7.1/4
MPN: 10400A-7.1/4

Save $1,675.25
Ko-ken 10400A-7.1/8 3.1/2 Sq. Dr. Socket 7.1/8 6 point Length 234mm

Ko-ken 10400A-7.1/8 3.1/2 Sq. Dr. Socket 7.1/8 6 point Length 234mm

SKU: KK-10400A-7.1/8
MPN: 10400A-7.1/8

Save $1,605.45
Ko-ken 10400A-7.3/4 3.1/2 Sq. Dr. Socket 7.3/4 6 point Length 245mm

Ko-ken 10400A-7.3/4 3.1/2 Sq. Dr. Socket 7.3/4 6 point Length 245mm

SKU: KK-10400A-7.3/4
MPN: 10400A-7.3/4

Save $1,926.53
Ko-ken 10400A-7.3/8 3.1/2 Sq. Dr. Socket 7.3/8 6 point Length 238mm

Ko-ken 10400A-7.3/8 3.1/2 Sq. Dr. Socket 7.3/8 6 point Length 238mm

SKU: KK-10400A-7.3/8
MPN: 10400A-7.3/8

Save $1,675.25
Ko-ken 10400A-7.5/8 3.1/2 Sq. Dr. Socket 7.5/8 6 point Length 242mm

Ko-ken 10400A-7.5/8 3.1/2 Sq. Dr. Socket 7.5/8 6 point Length 242mm

SKU: KK-10400A-7.5/8
MPN: 10400A-7.5/8

Save $1,800.88
Ko-ken 10400A-7.7/8 3.1/2 Sq. Dr. Socket 7.7/8 6 point Length 248mm

Ko-ken 10400A-7.7/8 3.1/2 Sq. Dr. Socket 7.7/8 6 point Length 248mm

SKU: KK-10400A-7.7/8
MPN: 10400A-7.7/8

Save $1,926.53
Ko-ken 10400A-8 3.1/2 Sq. Dr. Socket 8 6 point Length 250mm

Ko-ken 10400A-8 3.1/2 Sq. Dr. Socket 8 6 point Length 250mm

SKU: KK-10400A-8
MPN: 10400A-8

Save $2,080.10
Ko-ken 10400A-8.1/2 3.1/2 Sq. Dr. Socket 8.1/2 6 point Length 260mm

Ko-ken 10400A-8.1/2 3.1/2 Sq. Dr. Socket 8.1/2 6 point Length 260mm

SKU: KK-10400A-8.1/2
MPN: 10400A-8.1/2

Save $2,191.78
Ko-ken 10400A-8.1/4 3.1/2 Sq. Dr. Socket 8.1/4 6 point Length 255mm

Ko-ken 10400A-8.1/4 3.1/2 Sq. Dr. Socket 8.1/4 6 point Length 255mm

SKU: KK-10400A-8.1/4
MPN: 10400A-8.1/4

Save $2,080.10
Ko-ken 10400A-8.1/8 3.1/2 Sq. Dr. Socket 8.1/8 6 point Length 251mm

Ko-ken 10400A-8.1/8 3.1/2 Sq. Dr. Socket 8.1/8 6 point Length 251mm

SKU: KK-10400A-8.1/8
MPN: 10400A-8.1/8

Save $2,080.10
Ko-ken 10400A-8.3/4 3.1/2 Sq. Dr. Socket 8.3/4 6 point Length 264mm

Ko-ken 10400A-8.3/4 3.1/2 Sq. Dr. Socket 8.3/4 6 point Length 264mm

SKU: KK-10400A-8.3/4
MPN: 10400A-8.3/4

Save $2,457.03
Ko-ken 10400A-8.3/8 3.1/2 Sq. Dr. Socket 8.3/8 6 point Length 258mm

Ko-ken 10400A-8.3/8 3.1/2 Sq. Dr. Socket 8.3/8 6 point Length 258mm

SKU: KK-10400A-8.3/8
MPN: 10400A-8.3/8

Save $2,080.10