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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 3305X-18 3/8 Sq. Dr. Socket 18mm 12 point Length 40mm

Ko-ken 3305X-18 3/8 Sq. Dr. Socket 18mm 12 point Length 40mm

SKU: KK-3305X-18
MPN: 3305X-18

Save $2.57
Ko-ken 3305X-19 3/8 Sq. Dr. Socket 19mm 12 point Length 40mm

Ko-ken 3305X-19 3/8 Sq. Dr. Socket 19mm 12 point Length 40mm

SKU: KK-3305X-19
MPN: 3305X-19

Save $2.57
Ko-ken 3305X-8 3/8 Sq. Dr. Socket 8mm 12 point Length 40mm

Ko-ken 3305X-8 3/8 Sq. Dr. Socket 8mm 12 point Length 40mm

SKU: KK-3305X-8
MPN: 3305X-8

Save $2.25
Ko-ken 3305X-9 3/8 Sq. Dr. Socket 9mm 12 point Length 40mm

Ko-ken 3305X-9 3/8 Sq. Dr. Socket 9mm 12 point Length 40mm

SKU: KK-3305X-9
MPN: 3305X-9

Save $2.25
Ko-ken 3305XA-1/2 3/8 Sq. Dr. Socket 1/2 12 point Length 40mm

Ko-ken 3305XA-1/2 3/8 Sq. Dr. Socket 1/2 12 point Length 40mm

SKU: KK-3305XA-1/2
MPN: 3305XA-1/2

Save $2.64
Ko-ken 3305XA-1/4 3/8 Sq. Dr. Socket 1/4 12 point Length 40mm

Ko-ken 3305XA-1/4 3/8 Sq. Dr. Socket 1/4 12 point Length 40mm

SKU: KK-3305XA-1/4
MPN: 3305XA-1/4

Save $2.48
Ko-ken 3305XA-11/16 3/8 Sq. Dr. Socket 11/16 12 point Length 40mm

Ko-ken 3305XA-11/16 3/8 Sq. Dr. Socket 11/16 12 point Length 40mm

SKU: KK-3305XA-11/16
MPN: 3305XA-11/16

Save $2.84
Ko-ken 3305XA-3/4 3/8 Sq. Dr. Socket 3/4 12 point Length 40mm

Ko-ken 3305XA-3/4 3/8 Sq. Dr. Socket 3/4 12 point Length 40mm

SKU: KK-3305XA-3/4
MPN: 3305XA-3/4

Save $2.84
Ko-ken 3305XA-3/8 3/8 Sq. Dr. Socket 3/8 12 point Length 40mm

Ko-ken 3305XA-3/8 3/8 Sq. Dr. Socket 3/8 12 point Length 40mm

SKU: KK-3305XA-3/8
MPN: 3305XA-3/8

Save $2.48
Ko-ken 3305XA-5/16 3/8 Sq. Dr. Socket 5/16 12 point Length 40mm

Ko-ken 3305XA-5/16 3/8 Sq. Dr. Socket 5/16 12 point Length 40mm

SKU: KK-3305XA-5/16
MPN: 3305XA-5/16

Save $2.48
Ko-ken 3305XA-5/8 3/8 Sq. Dr. Socket 5/8 12 point Length 40mm

Ko-ken 3305XA-5/8 3/8 Sq. Dr. Socket 5/8 12 point Length 40mm

SKU: KK-3305XA-5/8
MPN: 3305XA-5/8

Save $2.77
Ko-ken 3305XA-7/16 3/8 Sq. Dr. Socket 7/16 12 point Length 40mm

Ko-ken 3305XA-7/16 3/8 Sq. Dr. Socket 7/16 12 point Length 40mm

SKU: KK-3305XA-7/16
MPN: 3305XA-7/16

Save $2.48
Ko-ken 3305XA-9/16 3/8 Sq. Dr. Socket 9/16 12 point Length 40mm

Ko-ken 3305XA-9/16 3/8 Sq. Dr. Socket 9/16 12 point Length 40mm

SKU: KK-3305XA-9/16
MPN: 3305XA-9/16

Save $2.64
Ko-ken 3310M-10 3/8 Sq. Dr. Socket 10mm Surface Length 55mm

Ko-ken 3310M-10 3/8 Sq. Dr. Socket 10mm Surface Length 55mm

SKU: KK-3310M-10
MPN: 3310M-10

Save $2.37
Ko-ken 3310M-11 3/8 Sq. Dr. Socket 11mm Surface Length 55mm

Ko-ken 3310M-11 3/8 Sq. Dr. Socket 11mm Surface Length 55mm

SKU: KK-3310M-11
MPN: 3310M-11

Save $2.37
Ko-ken 3310M-12 3/8 Sq. Dr. Socket 12mm Surface Length 55mm

Ko-ken 3310M-12 3/8 Sq. Dr. Socket 12mm Surface Length 55mm

SKU: KK-3310M-12
MPN: 3310M-12

Save $2.37
Ko-ken 3310M-13 3/8 Sq. Dr. Socket 13mm Surface Length 55mm

Ko-ken 3310M-13 3/8 Sq. Dr. Socket 13mm Surface Length 55mm

SKU: KK-3310M-13
MPN: 3310M-13

Save $2.52
Ko-ken 3310M-14 3/8 Sq. Dr. Socket 14mm Surface Length 55mm

Ko-ken 3310M-14 3/8 Sq. Dr. Socket 14mm Surface Length 55mm

SKU: KK-3310M-14
MPN: 3310M-14

Save $2.52
Ko-ken 3310M-15 3/8 Sq. Dr. Socket 15mm Surface Length 55mm

Ko-ken 3310M-15 3/8 Sq. Dr. Socket 15mm Surface Length 55mm

SKU: KK-3310M-15
MPN: 3310M-15

Save $2.65
Ko-ken 3310M-16 3/8 Sq. Dr. Socket 16mm Surface Length 55mm

Ko-ken 3310M-16 3/8 Sq. Dr. Socket 16mm Surface Length 55mm

SKU: KK-3310M-16
MPN: 3310M-16

Save $2.65
Ko-ken 3310M-17 3/8 Sq. Dr. Socket 17mm Surface Length 55mm

Ko-ken 3310M-17 3/8 Sq. Dr. Socket 17mm Surface Length 55mm

SKU: KK-3310M-17
MPN: 3310M-17

Save $2.65
Ko-ken 3310M-18 3/8 Sq. Dr. Socket 18mm Surface Length 55mm

Ko-ken 3310M-18 3/8 Sq. Dr. Socket 18mm Surface Length 55mm

SKU: KK-3310M-18
MPN: 3310M-18

Save $3.10
Ko-ken 3310M-19 3/8 Sq. Dr. Socket 19mm Surface Length 55mm

Ko-ken 3310M-19 3/8 Sq. Dr. Socket 19mm Surface Length 55mm

SKU: KK-3310M-19
MPN: 3310M-19

Save $3.10
Ko-ken 3310M-20 3/8 Sq. Dr. Socket 20mm Surface Length 65mm

Ko-ken 3310M-20 3/8 Sq. Dr. Socket 20mm Surface Length 65mm

SKU: KK-3310M-20
MPN: 3310M-20

Save $3.76