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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 4010M.50-19 1/2 Sq. Dr. Bit Socket 19mm Hex Length 50mm

Ko-ken 4010M.50-19 1/2 Sq. Dr. Bit Socket 19mm Hex Length 50mm

SKU: KK-4010M.50-19
MPN: 4010M.50-19

Save $3.65
Ko-ken 4010M.50-4 1/2 Sq. Dr. Bit Socket 4mm Hex Length 50mm

Ko-ken 4010M.50-4 1/2 Sq. Dr. Bit Socket 4mm Hex Length 50mm

SKU: KK-4010M.50-4
MPN: 4010M.50-4

Save $2.20
Ko-ken 4010M.50-5 1/2 Sq. Dr. Bit Socket 5mm Hex Length 50mm

Ko-ken 4010M.50-5 1/2 Sq. Dr. Bit Socket 5mm Hex Length 50mm

SKU: KK-4010M.50-5
MPN: 4010M.50-5

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Ko-ken 4010M.50-6 1/2 Sq. Dr. Bit Socket 6mm Hex Length 50mm

Ko-ken 4010M.50-6 1/2 Sq. Dr. Bit Socket 6mm Hex Length 50mm

SKU: KK-4010M.50-6
MPN: 4010M.50-6

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Ko-ken 4010M.50-7 1/2 Sq. Dr. Bit Socket 7mm Hex Length 50mm

Ko-ken 4010M.50-7 1/2 Sq. Dr. Bit Socket 7mm Hex Length 50mm

SKU: KK-4010M.50-7
MPN: 4010M.50-7

Save $2.35
Ko-ken 4010M.50-8 1/2 Sq. Dr. Bit Socket 8mm Hex Length 50mm

Ko-ken 4010M.50-8 1/2 Sq. Dr. Bit Socket 8mm Hex Length 50mm

SKU: KK-4010M.50-8
MPN: 4010M.50-8

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Ko-ken 4010M.50-9 1/2 Sq. Dr. Bit Socket 9mm Hex Length 50mm

Ko-ken 4010M.50-9 1/2 Sq. Dr. Bit Socket 9mm Hex Length 50mm

SKU: KK-4010M.50-9
MPN: 4010M.50-9

Save $2.35
Ko-ken 4010M.75-10 1/2 Sq. Dr. Bit Socket 10mm Hex Length 75mm

Ko-ken 4010M.75-10 1/2 Sq. Dr. Bit Socket 10mm Hex Length 75mm

SKU: KK-4010M.75-10
MPN: 4010M.75-10

Save $2.48
Ko-ken 4010M.75-12 1/2 Sq. Dr. Bit Socket 12mm Hex Length 75mm

Ko-ken 4010M.75-12 1/2 Sq. Dr. Bit Socket 12mm Hex Length 75mm

SKU: KK-4010M.75-12
MPN: 4010M.75-12

Save $2.64
Ko-ken 4010M.75-13 1/2 Sq. Dr. Bit Socket 13mm Hex Length 75mm

Ko-ken 4010M.75-13 1/2 Sq. Dr. Bit Socket 13mm Hex Length 75mm

SKU: KK-4010M.75-13
MPN: 4010M.75-13

Save $2.92
Ko-ken 4010M.75-14 1/2 Sq. Dr. Bit Socket 14mm Hex Length 75mm

Ko-ken 4010M.75-14 1/2 Sq. Dr. Bit Socket 14mm Hex Length 75mm

SKU: KK-4010M.75-14
MPN: 4010M.75-14

Save $2.92
Ko-ken 4010M.75-16 1/2 Sq. Dr. Bit Socket 16mm Hex Length 75mm

Ko-ken 4010M.75-16 1/2 Sq. Dr. Bit Socket 16mm Hex Length 75mm

SKU: KK-4010M.75-16
MPN: 4010M.75-16

Save $3.31
Ko-ken 4010M.75-17 1/2 Sq. Dr. Bit Socket 17mm Hex Length 75mm

Ko-ken 4010M.75-17 1/2 Sq. Dr. Bit Socket 17mm Hex Length 75mm

SKU: KK-4010M.75-17
MPN: 4010M.75-17

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Ko-ken 4010M.75-18 1/2 Sq. Dr. Bit Socket 18mm Hex Length 75mm

Ko-ken 4010M.75-18 1/2 Sq. Dr. Bit Socket 18mm Hex Length 75mm

SKU: KK-4010M.75-18
MPN: 4010M.75-18

Save $3.86
Ko-ken 4010M.75-19 1/2 Sq. Dr. Bit Socket 19mm Hex Length 75mm

Ko-ken 4010M.75-19 1/2 Sq. Dr. Bit Socket 19mm Hex Length 75mm

SKU: KK-4010M.75-19
MPN: 4010M.75-19

Save $3.86
Ko-ken 4010M.75-4 1/2 Sq. Dr. Bit Socket 4mm Hex Length 75mm

Ko-ken 4010M.75-4 1/2 Sq. Dr. Bit Socket 4mm Hex Length 75mm

SKU: KK-4010M.75-4
MPN: 4010M.75-4

Save $2.38
Ko-ken 4010M.75-5 1/2 Sq. Dr. Bit Socket 5mm Hex Length 75mm

Ko-ken 4010M.75-5 1/2 Sq. Dr. Bit Socket 5mm Hex Length 75mm

SKU: KK-4010M.75-5
MPN: 4010M.75-5

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Ko-ken 4010M.75-6 1/2 Sq. Dr. Bit Socket 6mm Hex Length 75mm

Ko-ken 4010M.75-6 1/2 Sq. Dr. Bit Socket 6mm Hex Length 75mm

SKU: KK-4010M.75-6
MPN: 4010M.75-6

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Ko-ken 4010M.75-7 1/2 Sq. Dr. Bit Socket 7mm Hex Length 75mm

Ko-ken 4010M.75-7 1/2 Sq. Dr. Bit Socket 7mm Hex Length 75mm

SKU: KK-4010M.75-7
MPN: 4010M.75-7

Save $2.48
Ko-ken 4010M.75-8 1/2 Sq. Dr. Bit Socket 8mm Hex Length 75mm

Ko-ken 4010M.75-8 1/2 Sq. Dr. Bit Socket 8mm Hex Length 75mm

SKU: KK-4010M.75-8
MPN: 4010M.75-8

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Ko-ken 4010M.75-9 1/2 Sq. Dr. Bit Socket 9mm Hex Length 75mm

Ko-ken 4010M.75-9 1/2 Sq. Dr. Bit Socket 9mm Hex Length 75mm

SKU: KK-4010M.75-9
MPN: 4010M.75-9

Save $2.48
Ko-ken 4012A.100-1/2 1/2 Sq. Dr. Bit Socket 1/2 Hex Length 100mm

Ko-ken 4012A.100-1/2 1/2 Sq. Dr. Bit Socket 1/2 Hex Length 100mm

SKU: KK-4012A.100-1/2
MPN: 4012A.100-1/2

Save $4.73
Ko-ken 4012A.100-1/4 1/2 Sq. Dr. Bit Socket 1/4 Hex Length 100mm

Ko-ken 4012A.100-1/4 1/2 Sq. Dr. Bit Socket 1/4 Hex Length 100mm

SKU: KK-4012A.100-1/4
MPN: 4012A.100-1/4

Save $4.33
Ko-ken 4012A.100-11/32 1/2 Sq. Dr. Bit Socket 11/32 Hex Length 100mm

Ko-ken 4012A.100-11/32 1/2 Sq. Dr. Bit Socket 11/32 Hex Length 100mm

SKU: KK-4012A.100-11/32
MPN: 4012A.100-11/32

Save $4.49