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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 6300M-41 3/4 Sq. Dr. Socket 41mm 6 point Length 90mm

Ko-ken 6300M-41 3/4 Sq. Dr. Socket 41mm 6 point Length 90mm

SKU: KK-6300M-41
MPN: 6300M-41

Save $14.69
Ko-ken 6300M-42 3/4 Sq. Dr. Socket 42mm 6 point Length 90mm

Ko-ken 6300M-42 3/4 Sq. Dr. Socket 42mm 6 point Length 90mm

SKU: KK-6300M-42
MPN: 6300M-42

Save $16.26
Ko-ken 6300M-44 3/4 Sq. Dr. Socket 44mm 6 point Length 90mm

Ko-ken 6300M-44 3/4 Sq. Dr. Socket 44mm 6 point Length 90mm

SKU: KK-6300M-44
MPN: 6300M-44

Save $18.67
Ko-ken 6300M-46 3/4 Sq. Dr. Socket 46mm 6 point Length 90mm

Ko-ken 6300M-46 3/4 Sq. Dr. Socket 46mm 6 point Length 90mm

SKU: KK-6300M-46
MPN: 6300M-46

Save $18.67
Ko-ken 6300M-48 3/4 Sq. Dr. Socket 48mm 6 point Length 90mm

Ko-ken 6300M-48 3/4 Sq. Dr. Socket 48mm 6 point Length 90mm

SKU: KK-6300M-48
MPN: 6300M-48

Save $18.67
Ko-ken 6300M-50 3/4 Sq. Dr. Socket 50mm 6 point Length 90mm

Ko-ken 6300M-50 3/4 Sq. Dr. Socket 50mm 6 point Length 90mm

SKU: KK-6300M-50
MPN: 6300M-50

Save $18.67
Ko-ken 6300M-52 3/4 Sq. Dr. Socket 52mm 6 point Length 100mm

Ko-ken 6300M-52 3/4 Sq. Dr. Socket 52mm 6 point Length 100mm

SKU: KK-6300M-52
MPN: 6300M-52

Save $19.62
Ko-ken 6300M-53 3/4 Sq. Dr. Socket 53mm 6 point Length 100mm

Ko-ken 6300M-53 3/4 Sq. Dr. Socket 53mm 6 point Length 100mm

SKU: KK-6300M-53
MPN: 6300M-53

Save $22.77
Ko-ken 6300M-54 3/4 Sq. Dr. Socket 54mm 6 point Length 100mm

Ko-ken 6300M-54 3/4 Sq. Dr. Socket 54mm 6 point Length 100mm

SKU: KK-6300M-54
MPN: 6300M-54

Save $28.22
Ko-ken 6300M-55 3/4 Sq. Dr. Socket 55mm 6 point Length 100mm

Ko-ken 6300M-55 3/4 Sq. Dr. Socket 55mm 6 point Length 100mm

SKU: KK-6300M-55
MPN: 6300M-55

Save $28.22
Ko-ken 6300M-56 3/4 Sq. Dr. Socket 56mm 6 point Length 100mm

Ko-ken 6300M-56 3/4 Sq. Dr. Socket 56mm 6 point Length 100mm

SKU: KK-6300M-56
MPN: 6300M-56

Save $28.22
Ko-ken 6300M-57 3/4 Sq. Dr. Socket 57mm 6 point Length 100mm

Ko-ken 6300M-57 3/4 Sq. Dr. Socket 57mm 6 point Length 100mm

SKU: KK-6300M-57
MPN: 6300M-57

Save $32.10
Ko-ken 6300M-58 3/4 Sq. Dr. Socket 58mm 6 point Length 100mm

Ko-ken 6300M-58 3/4 Sq. Dr. Socket 58mm 6 point Length 100mm

SKU: KK-6300M-58
MPN: 6300M-58

Save $32.10
Ko-ken 6300M-60 3/4 Sq. Dr. Socket 60mm 6 point Length 100mm

Ko-ken 6300M-60 3/4 Sq. Dr. Socket 60mm 6 point Length 100mm

SKU: KK-6300M-60
MPN: 6300M-60

Save $34.52
Ko-ken 6300M-63 3/4 Sq. Dr. Socket 63mm 6 point Length 100mm

Ko-ken 6300M-63 3/4 Sq. Dr. Socket 63mm 6 point Length 100mm

SKU: KK-6300M-63
MPN: 6300M-63

Save $37.24
Ko-ken 6300M-65 3/4 Sq. Dr. Socket 65mm 6 point Length 100mm

Ko-ken 6300M-65 3/4 Sq. Dr. Socket 65mm 6 point Length 100mm

SKU: KK-6300M-65
MPN: 6300M-65

Save $42.07
Ko-ken 6305A-1 3/4 Sq. Dr. Socket 1 12 point Length 90mm

Ko-ken 6305A-1 3/4 Sq. Dr. Socket 1 12 point Length 90mm

SKU: KK-6305A-1
MPN: 6305A-1

Save $9.33
Ko-ken 6305A-1.1/16 3/4 Sq. Dr. Socket 1.1/16 12 point Length 90mm

Ko-ken 6305A-1.1/16 3/4 Sq. Dr. Socket 1.1/16 12 point Length 90mm

SKU: KK-6305A-1.1/16
MPN: 6305A-1.1/16

Save $9.33
Ko-ken 6305A-1.1/2 3/4 Sq. Dr. Socket 1.1/2 12 point Length 90mm

Ko-ken 6305A-1.1/2 3/4 Sq. Dr. Socket 1.1/2 12 point Length 90mm

SKU: KK-6305A-1.1/2
MPN: 6305A-1.1/2

Save $14.90
Ko-ken 6305A-1.1/4 3/4 Sq. Dr. Socket 1..1/4 12 point Length 90mm

Ko-ken 6305A-1.1/4 3/4 Sq. Dr. Socket 1..1/4 12 point Length 90mm

SKU: KK-6305A-1.1/4
MPN: 6305A-1.1/4

Save $10.70
Ko-ken 6305A-1.1/8 3/4 Sq. Dr. Socket 1.1/8 12 point Length 90mm

Ko-ken 6305A-1.1/8 3/4 Sq. Dr. Socket 1.1/8 12 point Length 90mm

SKU: KK-6305A-1.1/8
MPN: 6305A-1.1/8

Save $10.70
Ko-ken 6305A-1.11/16 3/4 Sq. Dr. Socket 1.11/16 12 point Length 90mm

Ko-ken 6305A-1.11/16 3/4 Sq. Dr. Socket 1.11/16 12 point Length 90mm

SKU: KK-6305A-1.11/16
MPN: 6305A-1.11/16

Save $20.56
Ko-ken 6305A-1.13/16 3/4 Sq. Dr. Socket 1.13/16 12 point Length 90mm

Ko-ken 6305A-1.13/16 3/4 Sq. Dr. Socket 1.13/16 12 point Length 90mm

SKU: KK-6305A-1.13/16
MPN: 6305A-1.13/16

Save $20.56
Ko-ken 6305A-1.3/16 3/4 Sq. Dr. Socket 1.3/16 12 point Length 90mm

Ko-ken 6305A-1.3/16 3/4 Sq. Dr. Socket 1.3/16 12 point Length 90mm

SKU: KK-6305A-1.3/16
MPN: 6305A-1.3/16

Save $10.70