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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 3445M-18 3/8 Sq. Dr. Universal Socket 18mm 12 point Length 54.5mm

Ko-ken 3445M-18 3/8 Sq. Dr. Universal Socket 18mm 12 point Length 54.5mm

SKU: KK-3445M-18
MPN: 3445M-18

Save $6.96
Ko-ken 3445M-19 3/8 Sq. Dr. Universal Socket 19mm 12 point Length 56.5mm

Ko-ken 3445M-19 3/8 Sq. Dr. Universal Socket 19mm 12 point Length 56.5mm

SKU: KK-3445M-19
MPN: 3445M-19

Save $6.96
Ko-ken 3445M-21 3/8 Sq. Dr. Universal Socket 21mm 12 point Length 56.5mm

Ko-ken 3445M-21 3/8 Sq. Dr. Universal Socket 21mm 12 point Length 56.5mm

SKU: KK-3445M-21
MPN: 3445M-21

Save $8.05
Ko-ken 3445M-8 3/8 Sq. Dr. Universal Socket 8mm 12 point Length 47mm

Ko-ken 3445M-8 3/8 Sq. Dr. Universal Socket 8mm 12 point Length 47mm

SKU: KK-3445M-8
MPN: 3445M-8

Save $6.45
Ko-ken 3445M-9 3/8 Sq. Dr. Universal Socket 9mm 12 point Length 47.5mm

Ko-ken 3445M-9 3/8 Sq. Dr. Universal Socket 9mm 12 point Length 47.5mm

SKU: KK-3445M-9
MPN: 3445M-9

Save $6.45
Ko-ken 3445W-1/2 3/8 Sq. Dr. Universal Socket Whitworth 1/2 12 point Length 58.5mm

Ko-ken 3445W-1/2 3/8 Sq. Dr. Universal Socket Whitworth 1/2 12 point Length 58.5mm

SKU: KK-3445W-1/2
MPN: 3445W-1/2

Save $11.43
Ko-ken 3445W-1/4 3/8 Sq. Dr. Universal Socket Whitworth 1/4 12 point Length 51mm

Ko-ken 3445W-1/4 3/8 Sq. Dr. Universal Socket Whitworth 1/4 12 point Length 51mm

SKU: KK-3445W-1/4
MPN: 3445W-1/4

Save $8.63
Ko-ken 3445W-1/8 3/8 Sq. Dr. Universal Socket Whitworth 1/8 12 point Length 47.5mm

Ko-ken 3445W-1/8 3/8 Sq. Dr. Universal Socket Whitworth 1/8 12 point Length 47.5mm

SKU: KK-3445W-1/8
MPN: 3445W-1/8

Save $8.39
Ko-ken 3445W-3/16 3/8 Sq. Dr. Universal Socket Whitworth 3/16 12 point Length 49.5mm

Ko-ken 3445W-3/16 3/8 Sq. Dr. Universal Socket Whitworth 3/16 12 point Length 49.5mm

SKU: KK-3445W-3/16
MPN: 3445W-3/16

Save $8.39
Ko-ken 3445W-3/8 3/8 Sq. Dr. Universal Socket Whitworth 3/8 12 point Length 54.5mm

Ko-ken 3445W-3/8 3/8 Sq. Dr. Universal Socket Whitworth 3/8 12 point Length 54.5mm

SKU: KK-3445W-3/8
MPN: 3445W-3/8

Save $9.04
Ko-ken 3445W-5/16 3/8 Sq. Dr. Universal Socket Whitworth 5/16 12 point Length 53.5mm

Ko-ken 3445W-5/16 3/8 Sq. Dr. Universal Socket Whitworth 5/16 12 point Length 53.5mm

SKU: KK-3445W-5/16
MPN: 3445W-5/16

Save $8.63
Ko-ken 3445W-7/16 3/8 Sq. Dr. Universal Socket Whitworth 7/16 12 point Length 57.5mm

Ko-ken 3445W-7/16 3/8 Sq. Dr. Universal Socket Whitworth 7/16 12 point Length 57.5mm

SKU: KK-3445W-7/16
MPN: 3445W-7/16

Save $10.18
Ko-ken 3450M-10 3/8 Sq. Dr. Socket 10mm Nut Grip Length 26mm

Ko-ken 3450M-10 3/8 Sq. Dr. Socket 10mm Nut Grip Length 26mm

SKU: KK-3450M-10
MPN: 3450M-10

Save $2.52
Ko-ken 3450M-11 3/8 Sq. Dr. Socket 11mm Nut Grip Length 26mm

Ko-ken 3450M-11 3/8 Sq. Dr. Socket 11mm Nut Grip Length 26mm

SKU: KK-3450M-11
MPN: 3450M-11

Save $2.52
Ko-ken 3450M-12 3/8 Sq. Dr. Socket 12mm Nut Grip Length 26mm

Ko-ken 3450M-12 3/8 Sq. Dr. Socket 12mm Nut Grip Length 26mm

SKU: KK-3450M-12
MPN: 3450M-12

Save $2.52
Ko-ken 3450M-13 3/8 Sq. Dr. Socket 13mm Nut Grip Length 26mm

Ko-ken 3450M-13 3/8 Sq. Dr. Socket 13mm Nut Grip Length 26mm

SKU: KK-3450M-13
MPN: 3450M-13

Save $2.73
Ko-ken 3450M-14 3/8 Sq. Dr. Socket 14mm Nut Grip Length 27mm

Ko-ken 3450M-14 3/8 Sq. Dr. Socket 14mm Nut Grip Length 27mm

SKU: KK-3450M-14
MPN: 3450M-14

Save $2.73
Ko-ken 3450M-15 3/8 Sq. Dr. Socket 15mm Nut Grip Length 27mm

Ko-ken 3450M-15 3/8 Sq. Dr. Socket 15mm Nut Grip Length 27mm

SKU: KK-3450M-15
MPN: 3450M-15

Save $2.73
Ko-ken 3450M-16 3/8 Sq. Dr. Socket 16mm Nut Grip Length 27mm

Ko-ken 3450M-16 3/8 Sq. Dr. Socket 16mm Nut Grip Length 27mm

SKU: KK-3450M-16
MPN: 3450M-16

Save $2.73
Ko-ken 3450M-17 3/8 Sq. Dr. Socket 17mm Nut Grip Length 28mm

Ko-ken 3450M-17 3/8 Sq. Dr. Socket 17mm Nut Grip Length 28mm

SKU: KK-3450M-17
MPN: 3450M-17

Save $2.73
Ko-ken 3450M-18 3/8 Sq. Dr. Socket 18mm Nut Grip Length 29mm

Ko-ken 3450M-18 3/8 Sq. Dr. Socket 18mm Nut Grip Length 29mm

SKU: KK-3450M-18
MPN: 3450M-18

Save $2.83
Ko-ken 3450M-19 3/8 Sq. Dr. Socket 19mm Nut Grip Length 29mm

Ko-ken 3450M-19 3/8 Sq. Dr. Socket 19mm Nut Grip Length 29mm

SKU: KK-3450M-19
MPN: 3450M-19

Save $2.83
Ko-ken 3450M-21 3/8 Sq. Dr. Socket 21mm Nut Grip Length 29mm

Ko-ken 3450M-21 3/8 Sq. Dr. Socket 21mm Nut Grip Length 29mm

SKU: KK-3450M-21
MPN: 3450M-21

Save $3.03
Ko-ken 3450M-22 3/8 Sq. Dr. Socket 22mm Nut Grip Length 29mm

Ko-ken 3450M-22 3/8 Sq. Dr. Socket 22mm Nut Grip Length 29mm

SKU: KK-3450M-22
MPN: 3450M-22

Save $3.03