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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 3300X-13 3/8 Sq. Dr. Socket 13mm 6 point Length 40mm

Ko-ken 3300X-13 3/8 Sq. Dr. Socket 13mm 6 point Length 40mm

SKU: KK-3300X-13
MPN: 3300X-13

Save $2.39
Ko-ken 3300X-14 3/8 Sq. Dr. Socket 14mm 6 point Length 40mm

Ko-ken 3300X-14 3/8 Sq. Dr. Socket 14mm 6 point Length 40mm

SKU: KK-3300X-14
MPN: 3300X-14

Save $2.39
Ko-ken 3300X-15 3/8 Sq. Dr. Socket 15mm 6 point Length 40mm

Ko-ken 3300X-15 3/8 Sq. Dr. Socket 15mm 6 point Length 40mm

SKU: KK-3300X-15
MPN: 3300X-15

Save $2.53
Ko-ken 3300X-16 3/8 Sq. Dr. Socket 16mm 6 point Length 40mm

Ko-ken 3300X-16 3/8 Sq. Dr. Socket 16mm 6 point Length 40mm

SKU: KK-3300X-16
MPN: 3300X-16

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Ko-ken 3300X-17 3/8 Sq. Dr. Socket 17mm 6 point Length 40mm

Ko-ken 3300X-17 3/8 Sq. Dr. Socket 17mm 6 point Length 40mm

SKU: KK-3300X-17
MPN: 3300X-17

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Ko-ken 3300X-18 3/8 Sq. Dr. Socket 18mm 6 point Length 40mm

Ko-ken 3300X-18 3/8 Sq. Dr. Socket 18mm 6 point Length 40mm

SKU: KK-3300X-18
MPN: 3300X-18

Save $2.57
Ko-ken 3300X-19 3/8 Sq. Dr. Socket 19mm 6 point Length 40mm

Ko-ken 3300X-19 3/8 Sq. Dr. Socket 19mm 6 point Length 40mm

SKU: KK-3300X-19
MPN: 3300X-19

Save $2.57
Ko-ken 3300X-8 3/8 Sq. Dr. Socket 8mm 6 point Length 40mm

Ko-ken 3300X-8 3/8 Sq. Dr. Socket 8mm 6 point Length 40mm

SKU: KK-3300X-8
MPN: 3300X-8

Save $2.25
Ko-ken 3300X-9 3/8 Sq. Dr. Socket 9mm 6 point Length 40mm

Ko-ken 3300X-9 3/8 Sq. Dr. Socket 9mm 6 point Length 40mm

SKU: KK-3300X-9
MPN: 3300X-9

Save $2.25
Ko-ken 3300XA-1/2 3/8 Sq. Dr. Socket 1/2 6 point Length 40mm

Ko-ken 3300XA-1/2 3/8 Sq. Dr. Socket 1/2 6 point Length 40mm

SKU: KK-3300XA-1/2
MPN: 3300XA-1/2

Save $2.64
Ko-ken 3300XA-1/4 3/8 Sq. Dr. Socket 1/4 6 point Length 40mm

Ko-ken 3300XA-1/4 3/8 Sq. Dr. Socket 1/4 6 point Length 40mm

SKU: KK-3300XA-1/4
MPN: 3300XA-1/4

Save $2.48
Ko-ken 3300XA-11/16 3/8 Sq. Dr. Socket 11/16 6 point Length 40mm

Ko-ken 3300XA-11/16 3/8 Sq. Dr. Socket 11/16 6 point Length 40mm

SKU: KK-3300XA-11/16
MPN: 3300XA-11/16

Save $2.84
Ko-ken 3300XA-3/4 3/8 Sq. Dr. Socket 3/4 6 point Length 40mm

Ko-ken 3300XA-3/4 3/8 Sq. Dr. Socket 3/4 6 point Length 40mm

SKU: KK-3300XA-3/4
MPN: 3300XA-3/4

Save $2.84
Ko-ken 3300XA-3/8 3/8 Sq. Dr. Socket 3/8 6 point Length 40mm

Ko-ken 3300XA-3/8 3/8 Sq. Dr. Socket 3/8 6 point Length 40mm

SKU: KK-3300XA-3/8
MPN: 3300XA-3/8

Save $2.48
Ko-ken 3300XA-5/16 3/8 Sq. Dr. Socket 5/16 6 point Length 40mm

Ko-ken 3300XA-5/16 3/8 Sq. Dr. Socket 5/16 6 point Length 40mm

SKU: KK-3300XA-5/16
MPN: 3300XA-5/16

Save $2.48
Ko-ken 3300XA-5/8 3/8 Sq. Dr. Socket 5/8 6 point Length 40mm

Ko-ken 3300XA-5/8 3/8 Sq. Dr. Socket 5/8 6 point Length 40mm

SKU: KK-3300XA-5/8
MPN: 3300XA-5/8

Save $2.77
Ko-ken 3300XA-7/16 3/8 Sq. Dr. Socket 7/16 6 point Length 40mm

Ko-ken 3300XA-7/16 3/8 Sq. Dr. Socket 7/16 6 point Length 40mm

SKU: KK-3300XA-7/16
MPN: 3300XA-7/16

Save $2.48
Ko-ken 3300XA-9/16 3/8 Sq. Dr. Socket 9/16 6 point Length 40mm

Ko-ken 3300XA-9/16 3/8 Sq. Dr. Socket 9/16 6 point Length 40mm

SKU: KK-3300XA-9/16
MPN: 3300XA-9/16

Save $2.64
Ko-ken 3400A-1 3/8 Sq. Dr. Socket 1 6 point Length 35mm

Ko-ken 3400A-1 3/8 Sq. Dr. Socket 1 6 point Length 35mm

SKU: KK-3400A-1
MPN: 3400A-1

Save $3.07
Ko-ken 3400A-1/2 3/8 Sq. Dr. Socket 1/2 6 point Length 26mm

Ko-ken 3400A-1/2 3/8 Sq. Dr. Socket 1/2 6 point Length 26mm

SKU: KK-3400A-1/2
MPN: 3400A-1/2

Save $1.45
Ko-ken 3400A-1/4 3/8 Sq. Dr. Socket 1/4 6 point Length 26mm

Ko-ken 3400A-1/4 3/8 Sq. Dr. Socket 1/4 6 point Length 26mm

SKU: KK-3400A-1/4
MPN: 3400A-1/4

Save $1.20
Ko-ken 3400A-11/16 3/8 Sq. Dr. Socket 11/16 6 point Length 30mm

Ko-ken 3400A-11/16 3/8 Sq. Dr. Socket 11/16 6 point Length 30mm

SKU: KK-3400A-11/16
MPN: 3400A-11/16

Save $1.66
Ko-ken 3400A-11/32 3/8 Sq. Dr. Socket 11/32 6 point Length 26mm

Ko-ken 3400A-11/32 3/8 Sq. Dr. Socket 11/32 6 point Length 26mm

SKU: KK-3400A-11/32
MPN: 3400A-11/32

Save $1.20
Ko-ken 3400A-13/16 3/8 Sq. Dr. Socket 13/16 6 point Length 32mm

Ko-ken 3400A-13/16 3/8 Sq. Dr. Socket 13/16 6 point Length 32mm

SKU: KK-3400A-13/16
MPN: 3400A-13/16

Save $2.05