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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 3305M-8(L120) 3/8 Sq. Dr. Socket 8mm 12 point Length 120mm

Ko-ken 3305M-8(L120) 3/8 Sq. Dr. Socket 8mm 12 point Length 120mm

SKU: KK-3305M-8(L120)
MPN: 3305M-8(L120)

Save $8.57
Ko-ken 3305M-9 3/8 Sq. Dr. Socket 9mm 12 point Length 55mm

Ko-ken 3305M-9 3/8 Sq. Dr. Socket 9mm 12 point Length 55mm

SKU: KK-3305M-9
MPN: 3305M-9

Save $2.25
Ko-ken 3305M/4-L120 3/8 Sq. Dr. Socket set 8mm-14mm 12 point Length 120mm 4 pieces

Ko-ken 3305M/4-L120 3/8 Sq. Dr. Socket set 8mm-14mm 12 point Length 120mm 4 pieces

SKU: KK-3305M/4-L120
MPN: 3305M/4-L120

Save $35.67
Ko-ken 3305P-14 3/8 Sq. Dr. Spark Plug Socket 14mm 12 point Length 70mm Magnet

Ko-ken 3305P-14 3/8 Sq. Dr. Spark Plug Socket 14mm 12 point Length 70mm Magnet

SKU: KK-3305P-14
MPN: 3305P-14

Save $6.29
Ko-ken 3305P-16 3/8 Sq. Dr. Spark Plug Socket 16mm 12 point Length 70mm Magnet

Ko-ken 3305P-16 3/8 Sq. Dr. Spark Plug Socket 16mm 12 point Length 70mm Magnet

SKU: KK-3305P-16
MPN: 3305P-16

Save $7.78
Ko-ken 3305P.250-14 3/8 Sq. Dr. Extension Spark Plug Socket 14mm 12 point Length 250mm Magnet

Ko-ken 3305P.250-14 3/8 Sq. Dr. Extension Spark Plug Socket 14mm 12 point Length 250mm Magnet

SKU: KK-3305P.250-14
MPN: 3305P.250-14

Save $13.32
Ko-ken 3305PZ-14 3/8 Sq. Dr. Spark Plug Socket 14mm 12 point Length 70mm Magnet

Ko-ken 3305PZ-14 3/8 Sq. Dr. Spark Plug Socket 14mm 12 point Length 70mm Magnet

SKU: KK-3305PZ-14
MPN: 3305PZ-14

Save $7.16
Ko-ken 3305PZ-16 3/8 Sq. Dr. Spark Plug Socket 16mm 12 point Length 70mm Magnet

Ko-ken 3305PZ-16 3/8 Sq. Dr. Spark Plug Socket 16mm 12 point Length 70mm Magnet

SKU: KK-3305PZ-16
MPN: 3305PZ-16

Save $8.31
Ko-ken 3305W-1/2 3/8 Sq. Dr. Socket Whitworth 1/2 12 point Length 65mm

Ko-ken 3305W-1/2 3/8 Sq. Dr. Socket Whitworth 1/2 12 point Length 65mm

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

Save $4.92
Ko-ken 3305W-1/4 3/8 Sq. Dr. Socket Whitworth 1/4 12 point Length 55mm

Ko-ken 3305W-1/4 3/8 Sq. Dr. Socket Whitworth 1/4 12 point Length 55mm

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

Save $3.28
Ko-ken 3305W-1/8 3/8 Sq. Dr. Socket Whitworth 1/8 12 point Length 55mm

Ko-ken 3305W-1/8 3/8 Sq. Dr. Socket Whitworth 1/8 12 point Length 55mm

SKU: KK-3305W-1/8
MPN: 3305W-1/8

Save $2.92
Ko-ken 3305W-3/16 3/8 Sq. Dr. Socket Whitworth 3/16 12 point Length 55mm

Ko-ken 3305W-3/16 3/8 Sq. Dr. Socket Whitworth 3/16 12 point Length 55mm

SKU: KK-3305W-3/16
MPN: 3305W-3/16

Save $2.92
Ko-ken 3305W-3/8 3/8 Sq. Dr. Socket Whitworth 3/8 12 point Length 55mm

Ko-ken 3305W-3/8 3/8 Sq. Dr. Socket Whitworth 3/8 12 point Length 55mm

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

Save $3.84
Ko-ken 3305W-5/16 3/8 Sq. Dr. Socket Whitworth 5/16 12 point Length 55mm

Ko-ken 3305W-5/16 3/8 Sq. Dr. Socket Whitworth 5/16 12 point Length 55mm

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

Save $3.28
Ko-ken 3305W-7/16 3/8 Sq. Dr. Socket Whitworth 7/16 12 point Length 65mm

Ko-ken 3305W-7/16 3/8 Sq. Dr. Socket Whitworth 7/16 12 point Length 65mm

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

Save $4.64
Ko-ken 3305W-9/16 3/8 Sq. Dr. Socket Whitworth 9/16 12 point Length 65mm

Ko-ken 3305W-9/16 3/8 Sq. Dr. Socket Whitworth 9/16 12 point Length 65mm

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

Save $6.72
Ko-ken 3305X-10 3/8 Sq. Dr. Socket 10mm 12 point Length 40mm

Ko-ken 3305X-10 3/8 Sq. Dr. Socket 10mm 12 point Length 40mm

SKU: KK-3305X-10
MPN: 3305X-10

Save $2.25
Ko-ken 3305X-11 3/8 Sq. Dr. Socket 11mm 12 point Length 40mm

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

SKU: KK-3305X-11
MPN: 3305X-11

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

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

SKU: KK-3305X-12
MPN: 3305X-12

Save $2.25
Ko-ken 3305X-13 3/8 Sq. Dr. Socket 13mm 12 point Length 40mm

Ko-ken 3305X-13 3/8 Sq. Dr. Socket 13mm 12 point Length 40mm

SKU: KK-3305X-13
MPN: 3305X-13

Save $2.39
Ko-ken 3305X-14 3/8 Sq. Dr. Socket 14mm 12 point Length 40mm

Ko-ken 3305X-14 3/8 Sq. Dr. Socket 14mm 12 point Length 40mm

SKU: KK-3305X-14
MPN: 3305X-14

Save $2.39
Ko-ken 3305X-15 3/8 Sq. Dr. Socket 15mm 12 point Length 40mm

Ko-ken 3305X-15 3/8 Sq. Dr. Socket 15mm 12 point Length 40mm

SKU: KK-3305X-15
MPN: 3305X-15

Save $2.53
Ko-ken 3305X-16 3/8 Sq. Dr. Socket 16mm 12 point Length 40mm

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

SKU: KK-3305X-16
MPN: 3305X-16

Save $2.53
Ko-ken 3305X-17 3/8 Sq. Dr. Socket 17mm 12 point Length 40mm

Ko-ken 3305X-17 3/8 Sq. Dr. Socket 17mm 12 point Length 40mm

SKU: KK-3305X-17
MPN: 3305X-17

Save $2.53