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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 3400LH-10S 3/8 Sq. Dr. Socket 10S Length 26mm

Ko-ken 3400LH-10S 3/8 Sq. Dr. Socket 10S Length 26mm

SKU: KK-3400LH-10S
MPN: 3400LH-10S

Save $2.01
Ko-ken 3400LH-12S 3/8 Sq. Dr. Socket 12S Length 28mm

Ko-ken 3400LH-12S 3/8 Sq. Dr. Socket 12S Length 28mm

SKU: KK-3400LH-12S
MPN: 3400LH-12S

Save $2.09
Ko-ken 3400LH-14S 3/8 Sq. Dr. Socket 14S Length 30mm

Ko-ken 3400LH-14S 3/8 Sq. Dr. Socket 14S Length 30mm

SKU: KK-3400LH-14S
MPN: 3400LH-14S

Save $2.25
Ko-ken 3400LH-16S 3/8 Sq. Dr. Socket 16S Length 32mm

Ko-ken 3400LH-16S 3/8 Sq. Dr. Socket 16S Length 32mm

SKU: KK-3400LH-16S
MPN: 3400LH-16S

Save $2.56
Ko-ken 3400LH-5S 3/8 Sq. Dr. Socket 5S Length 26mm

Ko-ken 3400LH-5S 3/8 Sq. Dr. Socket 5S Length 26mm

SKU: KK-3400LH-5S
MPN: 3400LH-5S

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Ko-ken 3400LH-6S 3/8 Sq. Dr. Socket 6S Length 26mm

Ko-ken 3400LH-6S 3/8 Sq. Dr. Socket 6S Length 26mm

SKU: KK-3400LH-6S
MPN: 3400LH-6S

Save $2.01
Ko-ken 3400LH-8S 3/8 Sq. Dr. Socket 8S Length 26mm

Ko-ken 3400LH-8S 3/8 Sq. Dr. Socket 8S Length 26mm

SKU: KK-3400LH-8S
MPN: 3400LH-8S

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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

Save $2.08
Ko-ken RS3400LH/7 3/8 Sq. Dr. Socket set 5S-16S 150mm 7 pieces

Ko-ken RS3400LH/7 3/8 Sq. Dr. Socket set 5S-16S 150mm 7 pieces

SKU: KK-RS3400LH/7
MPN: RS3400LH/7

Save $15