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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 4310M-10 1/2 Sq. Dr. Socket 10mm Surface Length 77mm

Ko-ken 4310M-10 1/2 Sq. Dr. Socket 10mm Surface Length 77mm

SKU: KK-4310M-10
MPN: 4310M-10

Save $3.56
Ko-ken 4310M-11 1/2 Sq. Dr. Socket 11mm Surface Length 77mm

Ko-ken 4310M-11 1/2 Sq. Dr. Socket 11mm Surface Length 77mm

SKU: KK-4310M-11
MPN: 4310M-11

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Ko-ken 4310M-12 1/2 Sq. Dr. Socket 12mm Surface Length 77mm

Ko-ken 4310M-12 1/2 Sq. Dr. Socket 12mm Surface Length 77mm

SKU: KK-4310M-12
MPN: 4310M-12

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Ko-ken 4310M-13 1/2 Sq. Dr. Socket 13mm Surface Length 77mm

Ko-ken 4310M-13 1/2 Sq. Dr. Socket 13mm Surface Length 77mm

SKU: KK-4310M-13
MPN: 4310M-13

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Ko-ken 4310M-14 1/2 Sq. Dr. Socket 14mm Surface Length 77mm

Ko-ken 4310M-14 1/2 Sq. Dr. Socket 14mm Surface Length 77mm

SKU: KK-4310M-14
MPN: 4310M-14

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Ko-ken 4310M-15 1/2 Sq. Dr. Socket 15mm Surface Length 77mm

Ko-ken 4310M-15 1/2 Sq. Dr. Socket 15mm Surface Length 77mm

SKU: KK-4310M-15
MPN: 4310M-15

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Ko-ken 4310M-16 1/2 Sq. Dr. Socket 16mm Surface Length 77mm

Ko-ken 4310M-16 1/2 Sq. Dr. Socket 16mm Surface Length 77mm

SKU: KK-4310M-16
MPN: 4310M-16

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Ko-ken 4310M-17 1/2 Sq. Dr. Socket 17mm Surface Length 77mm

Ko-ken 4310M-17 1/2 Sq. Dr. Socket 17mm Surface Length 77mm

SKU: KK-4310M-17
MPN: 4310M-17

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Ko-ken 4310M-18 1/2 Sq. Dr. Socket 18mm Surface Length 77mm

Ko-ken 4310M-18 1/2 Sq. Dr. Socket 18mm Surface Length 77mm

SKU: KK-4310M-18
MPN: 4310M-18

Save $3.91
Ko-ken 4310M-19 1/2 Sq. Dr. Socket 19mm Surface Length 77mm

Ko-ken 4310M-19 1/2 Sq. Dr. Socket 19mm Surface Length 77mm

SKU: KK-4310M-19
MPN: 4310M-19

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Ko-ken 4310M-20 1/2 Sq. Dr. Socket 20mm Surface Length 77mm

Ko-ken 4310M-20 1/2 Sq. Dr. Socket 20mm Surface Length 77mm

SKU: KK-4310M-20
MPN: 4310M-20

Save $4.57
Ko-ken 4310M-21 1/2 Sq. Dr. Socket 21mm Surface Length 77mm

Ko-ken 4310M-21 1/2 Sq. Dr. Socket 21mm Surface Length 77mm

SKU: KK-4310M-21
MPN: 4310M-21

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Ko-ken 4310M-22 1/2 Sq. Dr. Socket 22mm Surface Length 77mm

Ko-ken 4310M-22 1/2 Sq. Dr. Socket 22mm Surface Length 77mm

SKU: KK-4310M-22
MPN: 4310M-22

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Ko-ken 4310M-23 1/2 Sq. Dr. Socket 23mm Surface Length 77mm

Ko-ken 4310M-23 1/2 Sq. Dr. Socket 23mm Surface Length 77mm

SKU: KK-4310M-23
MPN: 4310M-23

Save $4.70
Ko-ken 4310M-24 1/2 Sq. Dr. Socket 24mm Surface Length 77mm

Ko-ken 4310M-24 1/2 Sq. Dr. Socket 24mm Surface Length 77mm

SKU: KK-4310M-24
MPN: 4310M-24

Save $5.18
Ko-ken 4310M-25 1/2 Sq. Dr. Socket 25mm Surface Length 77mm

Ko-ken 4310M-25 1/2 Sq. Dr. Socket 25mm Surface Length 77mm

SKU: KK-4310M-25
MPN: 4310M-25

Save $5.31
Ko-ken 4310M-26 1/2 Sq. Dr. Socket 26mm Surface Length 77mm

Ko-ken 4310M-26 1/2 Sq. Dr. Socket 26mm Surface Length 77mm

SKU: KK-4310M-26
MPN: 4310M-26

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Ko-ken 4310M-27 1/2 Sq. Dr. Socket 27mm Surface Length 77mm

Ko-ken 4310M-27 1/2 Sq. Dr. Socket 27mm Surface Length 77mm

SKU: KK-4310M-27
MPN: 4310M-27

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Ko-ken 4310M-28 1/2 Sq. Dr. Socket 28mm Surface Length 77mm

Ko-ken 4310M-28 1/2 Sq. Dr. Socket 28mm Surface Length 77mm

SKU: KK-4310M-28
MPN: 4310M-28

Save $6.47
Ko-ken 4310M-29 1/2 Sq. Dr. Socket 29mm Surface Length 77mm

Ko-ken 4310M-29 1/2 Sq. Dr. Socket 29mm Surface Length 77mm

SKU: KK-4310M-29
MPN: 4310M-29

Save $6.80
Ko-ken 4310M-30 1/2 Sq. Dr. Socket 30mm Surface Length 77mm

Ko-ken 4310M-30 1/2 Sq. Dr. Socket 30mm Surface Length 77mm

SKU: KK-4310M-30
MPN: 4310M-30

Save $6.80
Ko-ken 4310M-31 1/2 Sq. Dr. Socket 31mm Surface Length 77mm

Ko-ken 4310M-31 1/2 Sq. Dr. Socket 31mm Surface Length 77mm

SKU: KK-4310M-31
MPN: 4310M-31

Save $6.80
Ko-ken 4310M-32 1/2 Sq. Dr. Socket 32mm Surface Length 77mm

Ko-ken 4310M-32 1/2 Sq. Dr. Socket 32mm Surface Length 77mm

SKU: KK-4310M-32
MPN: 4310M-32

Save $6.80
Ko-ken 4310M-34 1/2 Sq. Dr. Socket 34mm Surface Length 77mm

Ko-ken 4310M-34 1/2 Sq. Dr. Socket 34mm Surface Length 77mm

SKU: KK-4310M-34
MPN: 4310M-34

Save $10.59