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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 3012M.25-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 25mm

Ko-ken 3012M.25-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 25mm

SKU: KK-3012M.25-6
MPN: 3012M.25-6

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Ko-ken 3012M.25-7 3/8 Sq. Dr. Bit Socket 7mm Hex Length 25mm

Ko-ken 3012M.25-7 3/8 Sq. Dr. Bit Socket 7mm Hex Length 25mm

SKU: KK-3012M.25-7
MPN: 3012M.25-7

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Ko-ken 3012M.25-8 3/8 Sq. Dr. Bit Socket 8mm Hex Length 25mm

Ko-ken 3012M.25-8 3/8 Sq. Dr. Bit Socket 8mm Hex Length 25mm

SKU: KK-3012M.25-8
MPN: 3012M.25-8

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Ko-ken 3012M.52-10 3/8 Sq. Dr. Bit Socket 10mm Hex Length 52mm

Ko-ken 3012M.52-10 3/8 Sq. Dr. Bit Socket 10mm Hex Length 52mm

SKU: KK-3012M.52-10
MPN: 3012M.52-10

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Ko-ken 3012M.52-11 3/8 Sq. Dr. Bit Socket 11mm Hex Length 52mm

Ko-ken 3012M.52-11 3/8 Sq. Dr. Bit Socket 11mm Hex Length 52mm

SKU: KK-3012M.52-11
MPN: 3012M.52-11

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Ko-ken 3012M.52-12 3/8 Sq. Dr. Bit Socket 12mm Hex Length 52mm

Ko-ken 3012M.52-12 3/8 Sq. Dr. Bit Socket 12mm Hex Length 52mm

SKU: KK-3012M.52-12
MPN: 3012M.52-12

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Ko-ken 3012M.52-13 3/8 Sq. Dr. Bit Socket 13mm Hex Length 52mm

Ko-ken 3012M.52-13 3/8 Sq. Dr. Bit Socket 13mm Hex Length 52mm

SKU: KK-3012M.52-13
MPN: 3012M.52-13

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Ko-ken 3012M.52-14 3/8 Sq. Dr. Bit Socket 14mm Hex Length 52mm

Ko-ken 3012M.52-14 3/8 Sq. Dr. Bit Socket 14mm Hex Length 52mm

SKU: KK-3012M.52-14
MPN: 3012M.52-14

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Ko-ken 3012M.52-3 3/8 Sq. Dr. Bit Socket 3mm Hex Length 52mm

Ko-ken 3012M.52-3 3/8 Sq. Dr. Bit Socket 3mm Hex Length 52mm

SKU: KK-3012M.52-3
MPN: 3012M.52-3

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Ko-ken 3012M.52-4 3/8 Sq. Dr. Bit Socket 4mm Hex Length 52mm

Ko-ken 3012M.52-4 3/8 Sq. Dr. Bit Socket 4mm Hex Length 52mm

SKU: KK-3012M.52-4
MPN: 3012M.52-4

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Ko-ken 3012M.52-5 3/8 Sq. Dr. Bit Socket 5mm Hex Length 52mm

Ko-ken 3012M.52-5 3/8 Sq. Dr. Bit Socket 5mm Hex Length 52mm

SKU: KK-3012M.52-5
MPN: 3012M.52-5

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Ko-ken 3012M.52-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 52mm

Ko-ken 3012M.52-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 52mm

SKU: KK-3012M.52-6
MPN: 3012M.52-6

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Ko-ken 3012M.52-7 3/8 Sq. Dr. Bit Socket 7mm Hex Length 52mm

Ko-ken 3012M.52-7 3/8 Sq. Dr. Bit Socket 7mm Hex Length 52mm

SKU: KK-3012M.52-7
MPN: 3012M.52-7

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Ko-ken 3012M.52-8 3/8 Sq. Dr. Bit Socket 8mm Hex Length 52mm

Ko-ken 3012M.52-8 3/8 Sq. Dr. Bit Socket 8mm Hex Length 52mm

SKU: KK-3012M.52-8
MPN: 3012M.52-8

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Ko-ken 3012M.52-9 3/8 Sq. Dr. Bit Socket 9mm Hex Length 52mm

Ko-ken 3012M.52-9 3/8 Sq. Dr. Bit Socket 9mm Hex Length 52mm

SKU: KK-3012M.52-9
MPN: 3012M.52-9

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Ko-ken 3012M.62-10 3/8 Sq. Dr. Bit Socket 10mm Hex Length 62mm

Ko-ken 3012M.62-10 3/8 Sq. Dr. Bit Socket 10mm Hex Length 62mm

SKU: KK-3012M.62-10
MPN: 3012M.62-10

Save $2.77
Ko-ken 3012M.62-11 3/8 Sq. Dr. Bit Socket 11mm Hex Length 62mm

Ko-ken 3012M.62-11 3/8 Sq. Dr. Bit Socket 11mm Hex Length 62mm

SKU: KK-3012M.62-11
MPN: 3012M.62-11

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Ko-ken 3012M.62-12 3/8 Sq. Dr. Bit Socket 12mm Hex Length 62mm

Ko-ken 3012M.62-12 3/8 Sq. Dr. Bit Socket 12mm Hex Length 62mm

SKU: KK-3012M.62-12
MPN: 3012M.62-12

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Ko-ken 3012M.62-13 3/8 Sq. Dr. Bit Socket 13mm Hex Length 62mm

Ko-ken 3012M.62-13 3/8 Sq. Dr. Bit Socket 13mm Hex Length 62mm

SKU: KK-3012M.62-13
MPN: 3012M.62-13

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Ko-ken 3012M.62-14 3/8 Sq. Dr. Bit Socket 14mm Hex Length 62mm

Ko-ken 3012M.62-14 3/8 Sq. Dr. Bit Socket 14mm Hex Length 62mm

SKU: KK-3012M.62-14
MPN: 3012M.62-14

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Ko-ken 3012M.62-3 3/8 Sq. Dr. Bit Socket 3mm Hex Length 62mm

Ko-ken 3012M.62-3 3/8 Sq. Dr. Bit Socket 3mm Hex Length 62mm

SKU: KK-3012M.62-3
MPN: 3012M.62-3

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Ko-ken 3012M.62-4 3/8 Sq. Dr. Bit Socket 4mm Hex Length 62mm

Ko-ken 3012M.62-4 3/8 Sq. Dr. Bit Socket 4mm Hex Length 62mm

SKU: KK-3012M.62-4
MPN: 3012M.62-4

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Ko-ken 3012M.62-5 3/8 Sq. Dr. Bit Socket 5mm Hex Length 62mm

Ko-ken 3012M.62-5 3/8 Sq. Dr. Bit Socket 5mm Hex Length 62mm

SKU: KK-3012M.62-5
MPN: 3012M.62-5

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Ko-ken 3012M.62-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 62mm

Ko-ken 3012M.62-6 3/8 Sq. Dr. Bit Socket 6mm Hex Length 62mm

SKU: KK-3012M.62-6
MPN: 3012M.62-6

Save $2.71