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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 4300A-31/32 1/2 Sq. Dr. Socket 31/32 6 point Length 77mm

Ko-ken 4300A-31/32 1/2 Sq. Dr. Socket 31/32 6 point Length 77mm

SKU: KK-4300A-31/32
MPN: 4300A-31/32

Save $5.57
Ko-ken 4300A-5/16 1/2 Sq. Dr. Socket 5/16 6 point Length 77mm

Ko-ken 4300A-5/16 1/2 Sq. Dr. Socket 5/16 6 point Length 77mm

SKU: KK-4300A-5/16
MPN: 4300A-5/16

Save $3.73
Ko-ken 4300A-5/8 1/2 Sq. Dr. Socket 5/8 6 point Length 77mm

Ko-ken 4300A-5/8 1/2 Sq. Dr. Socket 5/8 6 point Length 77mm

SKU: KK-4300A-5/8
MPN: 4300A-5/8

Save $3.73
Ko-ken 4300A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 77mm

Ko-ken 4300A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 77mm

SKU: KK-4300A-7/16
MPN: 4300A-7/16

Save $3.73
Ko-ken 4300A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 77mm

Ko-ken 4300A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 77mm

SKU: KK-4300A-7/8
MPN: 4300A-7/8

Save $4.79
Ko-ken 4300A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 77mm

Ko-ken 4300A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 77mm

SKU: KK-4300A-9/16
MPN: 4300A-9/16

Save $3.73
Ko-ken 4300M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 77mm

Ko-ken 4300M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 77mm

SKU: KK-4300M-10
MPN: 4300M-10

Save $3.40
Ko-ken 4300M-10(L120) 1/2 Sq. Dr. Socket 10mm 6 point Length 120mm

Ko-ken 4300M-10(L120) 1/2 Sq. Dr. Socket 10mm 6 point Length 120mm

SKU: KK-4300M-10(L120)
MPN: 4300M-10(L120)

Save $10.31
Ko-ken 4300M-11 1/2 Sq. Dr. Socket 11mm 6 point Length 77mm

Ko-ken 4300M-11 1/2 Sq. Dr. Socket 11mm 6 point Length 77mm

SKU: KK-4300M-11
MPN: 4300M-11

Save $3.40
Ko-ken 4300M-12 1/2 Sq. Dr. Socket 12mm 6 point Length 77mm

Ko-ken 4300M-12 1/2 Sq. Dr. Socket 12mm 6 point Length 77mm

SKU: KK-4300M-12
MPN: 4300M-12

Save $3.40
Ko-ken 4300M-12(L120) 1/2 Sq. Dr. Socket 12mm 6 point Length 120mm

Ko-ken 4300M-12(L120) 1/2 Sq. Dr. Socket 12mm 6 point Length 120mm

SKU: KK-4300M-12(L120)
MPN: 4300M-12(L120)

Save $10.31
Ko-ken 4300M-13 1/2 Sq. Dr. Socket 13mm 6 point Length 77mm

Ko-ken 4300M-13 1/2 Sq. Dr. Socket 13mm 6 point Length 77mm

SKU: KK-4300M-13
MPN: 4300M-13

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Ko-ken 4300M-14 1/2 Sq. Dr. Socket 14mm 6 point Length 77mm

Ko-ken 4300M-14 1/2 Sq. Dr. Socket 14mm 6 point Length 77mm

SKU: KK-4300M-14
MPN: 4300M-14

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Ko-ken 4300M-14(L120) 1/2 Sq. Dr. Socket 14mm 6 point Length 120mm

Ko-ken 4300M-14(L120) 1/2 Sq. Dr. Socket 14mm 6 point Length 120mm

SKU: KK-4300M-14(L120)
MPN: 4300M-14(L120)

Save $10.31
Ko-ken 4300M-15 1/2 Sq. Dr. Socket 15mm 6 point Length 77mm

Ko-ken 4300M-15 1/2 Sq. Dr. Socket 15mm 6 point Length 77mm

SKU: KK-4300M-15
MPN: 4300M-15

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Ko-ken 4300M-16 1/2 Sq. Dr. Socket 16mm 6 point Length 77mm

Ko-ken 4300M-16 1/2 Sq. Dr. Socket 16mm 6 point Length 77mm

SKU: KK-4300M-16
MPN: 4300M-16

Save $3.40
Ko-ken 4300M-16(L120) 1/2 Sq. Dr. Socket 16mm 6 point Length 120mm

Ko-ken 4300M-16(L120) 1/2 Sq. Dr. Socket 16mm 6 point Length 120mm

SKU: KK-4300M-16(L120)
MPN: 4300M-16(L120)

Save $10.47
Ko-ken 4300M-17(L60) 1/2 Sq. Dr. Wheel Nut Socket 17mm 6 point Length 60mm

Ko-ken 4300M-17(L60) 1/2 Sq. Dr. Wheel Nut Socket 17mm 6 point Length 60mm

SKU: KK-4300M-17(L60)
MPN: 4300M-17(L60)

Save $3.88
Ko-ken 4300M-18 1/2 Sq. Dr. Socket 18mm 6 point Length 77mm

Ko-ken 4300M-18 1/2 Sq. Dr. Socket 18mm 6 point Length 77mm

SKU: KK-4300M-18
MPN: 4300M-18

Save $3.72
Ko-ken 4300M-19(L60) 1/2 Sq. Dr. Wheel Nut Socket 19mm 6 point Length 60mm

Ko-ken 4300M-19(L60) 1/2 Sq. Dr. Wheel Nut Socket 19mm 6 point Length 60mm

SKU: KK-4300M-19(L60)
MPN: 4300M-19(L60)

Save $4.17
Ko-ken 4300M-20 1/2 Sq. Dr. Socket 20mm 6 point Length 77mm

Ko-ken 4300M-20 1/2 Sq. Dr. Socket 20mm 6 point Length 77mm

SKU: KK-4300M-20
MPN: 4300M-20

Save $4.35
Ko-ken 4300M-22 1/2 Sq. Dr. Socket 22mm 6 point Length 77mm

Ko-ken 4300M-22 1/2 Sq. Dr. Socket 22mm 6 point Length 77mm

SKU: KK-4300M-22
MPN: 4300M-22

Save $4.35
Ko-ken 4300M-23 1/2 Sq. Dr. Socket 23mm 6 point Length 77mm

Ko-ken 4300M-23 1/2 Sq. Dr. Socket 23mm 6 point Length 77mm

SKU: KK-4300M-23
MPN: 4300M-23

Save $4.47
Ko-ken 4300M-30 1/2 Sq. Dr. Socket 30mm 6 point Length 77mm

Ko-ken 4300M-30 1/2 Sq. Dr. Socket 30mm 6 point Length 77mm

SKU: KK-4300M-30
MPN: 4300M-30

Save $6.48