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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 3445W-1/4 3/8 Sq. Dr. Universal Socket Whitworth 1/4 12 point Length 51mm

Ko-ken 3445W-1/4 3/8 Sq. Dr. Universal Socket Whitworth 1/4 12 point Length 51mm

SKU: KK-3445W-1/4
MPN: 3445W-1/4

Save $8.63
Ko-ken 3445W-1/8 3/8 Sq. Dr. Universal Socket Whitworth 1/8 12 point Length 47.5mm

Ko-ken 3445W-1/8 3/8 Sq. Dr. Universal Socket Whitworth 1/8 12 point Length 47.5mm

SKU: KK-3445W-1/8
MPN: 3445W-1/8

Save $8.39
Ko-ken 3445W-3/16 3/8 Sq. Dr. Universal Socket Whitworth 3/16 12 point Length 49.5mm

Ko-ken 3445W-3/16 3/8 Sq. Dr. Universal Socket Whitworth 3/16 12 point Length 49.5mm

SKU: KK-3445W-3/16
MPN: 3445W-3/16

Save $8.39
Ko-ken 3445W-3/8 3/8 Sq. Dr. Universal Socket Whitworth 3/8 12 point Length 54.5mm

Ko-ken 3445W-3/8 3/8 Sq. Dr. Universal Socket Whitworth 3/8 12 point Length 54.5mm

SKU: KK-3445W-3/8
MPN: 3445W-3/8

Save $9.04
Ko-ken 3445W-7/16 3/8 Sq. Dr. Universal Socket Whitworth 7/16 12 point Length 57.5mm

Ko-ken 3445W-7/16 3/8 Sq. Dr. Universal Socket Whitworth 7/16 12 point Length 57.5mm

SKU: KK-3445W-7/16
MPN: 3445W-7/16

Save $10.18
Ko-ken 4300A-1 1/2 Sq. Dr. Socket 1 6 point Length 77mm

Ko-ken 4300A-1 1/2 Sq. Dr. Socket 1 6 point Length 77mm

SKU: KK-4300A-1
MPN: 4300A-1

Save $5.57
Ko-ken 4300A-1.1/16 1/2 Sq. Dr. Socket 1.1/16 6 point Length 77mm

Ko-ken 4300A-1.1/16 1/2 Sq. Dr. Socket 1.1/16 6 point Length 77mm

SKU: KK-4300A-1.1/16
MPN: 4300A-1.1/16

Save $5.57
Ko-ken 4300A-1.1/2 1/2 Sq. Dr. Socket 1.1/2 6 point Length 77mm

Ko-ken 4300A-1.1/2 1/2 Sq. Dr. Socket 1.1/2 6 point Length 77mm

SKU: KK-4300A-1.1/2
MPN: 4300A-1.1/2

Save $13.01
Ko-ken 4300A-1.1/4 1/2 Sq. Dr. Socket 1.1/4 6 point Length 77mm

Ko-ken 4300A-1.1/4 1/2 Sq. Dr. Socket 1.1/4 6 point Length 77mm

SKU: KK-4300A-1.1/4
MPN: 4300A-1.1/4

Save $7.13
Ko-ken 4300A-1.1/8 1/2 Sq. Dr. Socket 1.1/8 6 point Length 77mm

Ko-ken 4300A-1.1/8 1/2 Sq. Dr. Socket 1.1/8 6 point Length 77mm

SKU: KK-4300A-1.1/8
MPN: 4300A-1.1/8

Save $7.13
Ko-ken 4300A-1.13/16 1/2 Sq. Dr. Socket 1.13/16 6 point Length 77mm

Ko-ken 4300A-1.13/16 1/2 Sq. Dr. Socket 1.13/16 6 point Length 77mm

SKU: KK-4300A-1.13/16
MPN: 4300A-1.13/16

Save $19.83
Ko-ken 4300A-1.3/16 1/2 Sq. Dr. Socket 1.3/16 6 point Length 77mm

Ko-ken 4300A-1.3/16 1/2 Sq. Dr. Socket 1.3/16 6 point Length 77mm

SKU: KK-4300A-1.3/16
MPN: 4300A-1.3/16

Save $7.13
Ko-ken 4300A-1.3/8 1/2 Sq. Dr. Socket 1.3/8 6 point Length 77mm

Ko-ken 4300A-1.3/8 1/2 Sq. Dr. Socket 1.3/8 6 point Length 77mm

SKU: KK-4300A-1.3/8
MPN: 4300A-1.3/8

Save $11.01
Ko-ken 4300A-1.5/16 1/2 Sq. Dr. Socket 1.5/16 6 point Length 77mm

Ko-ken 4300A-1.5/16 1/2 Sq. Dr. Socket 1.5/16 6 point Length 77mm

SKU: KK-4300A-1.5/16
MPN: 4300A-1.5/16

Save $11.01
Ko-ken 4300A-1.7/16 1/2 Sq. Dr. Socket 1.7/16 6 point Length 77mm

Ko-ken 4300A-1.7/16 1/2 Sq. Dr. Socket 1.7/16 6 point Length 77mm

SKU: KK-4300A-1.7/16
MPN: 4300A-1.7/16

Save $12.06
Ko-ken 4300A-1/2 1/2 Sq. Dr. Socket 1/2 6 point Length 77mm

Ko-ken 4300A-1/2 1/2 Sq. Dr. Socket 1/2 6 point Length 77mm

SKU: KK-4300A-1/2
MPN: 4300A-1/2

Save $3.73
Ko-ken 4300A-11/16 1/2 Sq. Dr. Socket 11/16 6 point Length 77mm

Ko-ken 4300A-11/16 1/2 Sq. Dr. Socket 11/16 6 point Length 77mm

SKU: KK-4300A-11/16
MPN: 4300A-11/16

Save $4.10
Ko-ken 4300A-13/16 1/2 Sq. Dr. Socket 13/16 6 point Length 77mm

Ko-ken 4300A-13/16 1/2 Sq. Dr. Socket 13/16 6 point Length 77mm

SKU: KK-4300A-13/16
MPN: 4300A-13/16

Save $4.79
Ko-ken 4300A-15/16 1/2 Sq. Dr. Socket 15/16 6 point Length 77mm

Ko-ken 4300A-15/16 1/2 Sq. Dr. Socket 15/16 6 point Length 77mm

SKU: KK-4300A-15/16
MPN: 4300A-15/16

Save $5.42
Ko-ken 4300A-19/32 1/2 Sq. Dr. Socket 19/32 6 point Length 77mm

Ko-ken 4300A-19/32 1/2 Sq. Dr. Socket 19/32 6 point Length 77mm

SKU: KK-4300A-19/32
MPN: 4300A-19/32

Save $3.73
Ko-ken 4300A-21/32 1/2 Sq. Dr. Socket 21/32 6 point Length 77mm

Ko-ken 4300A-21/32 1/2 Sq. Dr. Socket 21/32 6 point Length 77mm

SKU: KK-4300A-21/32
MPN: 4300A-21/32

Save $3.73
Ko-ken 4300A-25/32 1/2 Sq. Dr. Socket 25/32 6 point Length 77mm

Ko-ken 4300A-25/32 1/2 Sq. Dr. Socket 25/32 6 point Length 77mm

SKU: KK-4300A-25/32
MPN: 4300A-25/32

Save $4.79
Ko-ken 4300A-3/4 1/2 Sq. Dr. Socket 3/4 6 point Length 77mm

Ko-ken 4300A-3/4 1/2 Sq. Dr. Socket 3/4 6 point Length 77mm

SKU: KK-4300A-3/4
MPN: 4300A-3/4

Save $4.10
Ko-ken 4300A-3/8 1/2 Sq. Dr. Socket 3/8 6 point Length 77mm

Ko-ken 4300A-3/8 1/2 Sq. Dr. Socket 3/8 6 point Length 77mm

SKU: KK-4300A-3/8
MPN: 4300A-3/8

Save $3.73