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KK Hand Tools

Freer Tool & Supply is your trusted, ISO-certified source for Ko-Ken hand tools—delivering the complete lineup of sockets, ratchets, breaker bars, extension bars, and specialty tools engineered for professional results. Every Ko-Ken hand tool is crafted from high-grade chrome vanadium steel and undergoes precision heat treatment, ensuring exceptional durability and long-term performance in demanding industrial and automotive environments.


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

Save $3.56
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

Save $3.91
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