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KK Hand Tools

Ko-Ken hand tools include professional-grade tools and accessories used for assembly, maintenance, and repair in automotive, industrial, and MRO environments (application dependent). Technicians and maintenance teams typically choose these tools for consistent fit on fasteners, durability under daily use, and better access in tight spaces. Because “hand tools” covers many categories, selecting the right item is mainly about matching the tool type and specifications to your fastener sizes, drive system, and working conditions (per listing).


Explore our full range of Ko-Ken hand tools, including:
Standard and deep sockets (metric and SAE)
Ratchets and breaker bars for high-torque applications
Extension bars for hard-to-reach fasteners
Specialty tools and adaptors for unique jobs

Ko-ken 4400A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 37mm

Ko-ken 4400A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 37mm

SKU: KK-4400A-7/16
MPN: 4400A-7/16

Save $1.53
Ko-ken 4400A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 40mm

Ko-ken 4400A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 40mm

SKU: KK-4400A-7/8
MPN: 4400A-7/8

Save $2.25
Ko-ken 4400A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 37mm

Ko-ken 4400A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 37mm

SKU: KK-4400A-9/16
MPN: 4400A-9/16

Save $1.58
Ko-ken 4400LH-10S 1/2 Sq. Dr. Socket 10S Length 37mm

Ko-ken 4400LH-10S 1/2 Sq. Dr. Socket 10S Length 37mm

SKU: KK-4400LH-10S
MPN: 4400LH-10S

Save $2.08
Ko-ken 4400LH-12S 1/2 Sq. Dr. Socket 12S Length 37mm

Ko-ken 4400LH-12S 1/2 Sq. Dr. Socket 12S Length 37mm

SKU: KK-4400LH-12S
MPN: 4400LH-12S

Save $2.20
Ko-ken 4400LH-14S 1/2 Sq. Dr. Socket 14S Length 37mm

Ko-ken 4400LH-14S 1/2 Sq. Dr. Socket 14S Length 37mm

SKU: KK-4400LH-14S
MPN: 4400LH-14S

Save $2.38
Ko-ken 4400LH-16S 1/2 Sq. Dr. Socket 16S Length 38mm

Ko-ken 4400LH-16S 1/2 Sq. Dr. Socket 16S Length 38mm

SKU: KK-4400LH-16S
MPN: 4400LH-16S

Save $2.72
Ko-ken 4400LH-6S 1/2 Sq. Dr. Socket 6S Length 36mm

Ko-ken 4400LH-6S 1/2 Sq. Dr. Socket 6S Length 36mm

SKU: KK-4400LH-6S
MPN: 4400LH-6S

Save $2.08
Ko-ken 4400LH-8S 1/2 Sq. Dr. Socket 8S Length 37mm

Ko-ken 4400LH-8S 1/2 Sq. Dr. Socket 8S Length 37mm

SKU: KK-4400LH-8S
MPN: 4400LH-8S

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Ko-ken 4400M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 37mm

Ko-ken 4400M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 37mm

SKU: KK-4400M-10
MPN: 4400M-10

Save $1.39
Ko-ken 4400M-11 1/2 Sq. Dr. Socket 11mm 6 point Length 37mm

Ko-ken 4400M-11 1/2 Sq. Dr. Socket 11mm 6 point Length 37mm

SKU: KK-4400M-11
MPN: 4400M-11

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Ko-ken 4400M-12 1/2 Sq. Dr. Socket 12mm 6 point Length 37mm

Ko-ken 4400M-12 1/2 Sq. Dr. Socket 12mm 6 point Length 37mm

SKU: KK-4400M-12
MPN: 4400M-12

Save $1.39
Ko-ken 4400M-13 1/2 Sq. Dr. Socket 13mm 6 point Length 37mm

Ko-ken 4400M-13 1/2 Sq. Dr. Socket 13mm 6 point Length 37mm

SKU: KK-4400M-13
MPN: 4400M-13

Save $1.39
Ko-ken 4400M-14 1/2 Sq. Dr. Socket 14mm 6 point Length 37mm

Ko-ken 4400M-14 1/2 Sq. Dr. Socket 14mm 6 point Length 37mm

SKU: KK-4400M-14
MPN: 4400M-14

Save $1.43
Ko-ken 4400M-15 1/2 Sq. Dr. Socket 15mm 6 point Length 37mm

Ko-ken 4400M-15 1/2 Sq. Dr. Socket 15mm 6 point Length 37mm

SKU: KK-4400M-15
MPN: 4400M-15

Save $1.47
Ko-ken 4400M-16 1/2 Sq. Dr. Socket 16mm 6 point Length 37mm

Ko-ken 4400M-16 1/2 Sq. Dr. Socket 16mm 6 point Length 37mm

SKU: KK-4400M-16
MPN: 4400M-16

Save $1.47
Ko-ken 4400M-17 1/2 Sq. Dr. Socket 17mm 6 point Length 37mm

Ko-ken 4400M-17 1/2 Sq. Dr. Socket 17mm 6 point Length 37mm

SKU: KK-4400M-17
MPN: 4400M-17

Save $1.47
Ko-ken 4400M-18 1/2 Sq. Dr. Socket 18mm 6 point Length 37mm

Ko-ken 4400M-18 1/2 Sq. Dr. Socket 18mm 6 point Length 37mm

SKU: KK-4400M-18
MPN: 4400M-18

Save $1.58
Ko-ken 4400M-19 1/2 Sq. Dr. Socket 19mm 6 point Length 38mm

Ko-ken 4400M-19 1/2 Sq. Dr. Socket 19mm 6 point Length 38mm

SKU: KK-4400M-19
MPN: 4400M-19

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Ko-ken 4400M-20 1/2 Sq. Dr. Socket 20mm 6 point Length 38mm

Ko-ken 4400M-20 1/2 Sq. Dr. Socket 20mm 6 point Length 38mm

SKU: KK-4400M-20
MPN: 4400M-20

Save $1.89
Ko-ken 4400M-21 1/2 Sq. Dr. Socket 21mm 6 point Length 38mm

Ko-ken 4400M-21 1/2 Sq. Dr. Socket 21mm 6 point Length 38mm

SKU: KK-4400M-21
MPN: 4400M-21

Save $1.89
Ko-ken 4400M-22 1/2 Sq. Dr. Socket 22mm 6 point Length 40mm

Ko-ken 4400M-22 1/2 Sq. Dr. Socket 22mm 6 point Length 40mm

SKU: KK-4400M-22
MPN: 4400M-22

Save $2.05
Ko-ken 4400M-23 1/2 Sq. Dr. Socket 23mm 6 point Length 40mm

Ko-ken 4400M-23 1/2 Sq. Dr. Socket 23mm 6 point Length 40mm

SKU: KK-4400M-23
MPN: 4400M-23

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Ko-ken 4400M-24 1/2 Sq. Dr. Socket 24mm 6 point Length 42mm

Ko-ken 4400M-24 1/2 Sq. Dr. Socket 24mm 6 point Length 42mm

SKU: KK-4400M-24
MPN: 4400M-24

Save $2.05