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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-1/2 3/8 Sq. Dr. Universal Socket Whitworth 1/2 12 point Length 58.5mm

Ko-ken 3445W-1/2 3/8 Sq. Dr. Universal Socket Whitworth 1/2 12 point Length 58.5mm

SKU: KK-3445W-1/2
MPN: 3445W-1/2

Save $11.43
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-5/16 3/8 Sq. Dr. Universal Socket Whitworth 5/16 12 point Length 53.5mm

Ko-ken 3445W-5/16 3/8 Sq. Dr. Universal Socket Whitworth 5/16 12 point Length 53.5mm

SKU: KK-3445W-5/16
MPN: 3445W-5/16

Save $8.63
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 4400W-1/2 1/2 Sq. Dr. Socket Whitworth 1/2 6 point Length 40mm

Ko-ken 4400W-1/2 1/2 Sq. Dr. Socket Whitworth 1/2 6 point Length 40mm

SKU: KK-4400W-1/2
MPN: 4400W-1/2

Save $2.66
Ko-ken 4400W-1/4 1/2 Sq. Dr. Socket Whitworth 1/4 6 point Length 37mm

Ko-ken 4400W-1/4 1/2 Sq. Dr. Socket Whitworth 1/4 6 point Length 37mm

SKU: KK-4400W-1/4
MPN: 4400W-1/4

Save $1.81
Ko-ken 4400W-11/16 1/2 Sq. Dr. Socket Whitworth 11/16 6 point Length 46mm

Ko-ken 4400W-11/16 1/2 Sq. Dr. Socket Whitworth 11/16 6 point Length 46mm

SKU: KK-4400W-11/16
MPN: 4400W-11/16

Save $4.55
Ko-ken 4400W-3/16 1/2 Sq. Dr. Socket Whitworth 3/16 6 point Length 37mm

Ko-ken 4400W-3/16 1/2 Sq. Dr. Socket Whitworth 3/16 6 point Length 37mm

SKU: KK-4400W-3/16
MPN: 4400W-3/16

Save $1.81
Ko-ken 4400W-3/4 1/2 Sq. Dr. Socket Whitworth 3/4 6 point Length 47mm

Ko-ken 4400W-3/4 1/2 Sq. Dr. Socket Whitworth 3/4 6 point Length 47mm

SKU: KK-4400W-3/4
MPN: 4400W-3/4

Save $6.68
Ko-ken 4400W-3/8 1/2 Sq. Dr. Socket Whitworth 3/8 6 point Length 37mm

Ko-ken 4400W-3/8 1/2 Sq. Dr. Socket Whitworth 3/8 6 point Length 37mm

SKU: KK-4400W-3/8
MPN: 4400W-3/8

Save $2.05
Ko-ken 4400W-5/16 1/2 Sq. Dr. Socket Whitworth 5/16 6 point Length 37mm

Ko-ken 4400W-5/16 1/2 Sq. Dr. Socket Whitworth 5/16 6 point Length 37mm

SKU: KK-4400W-5/16
MPN: 4400W-5/16

Save $1.90
Ko-ken 4400W-5/8 1/2 Sq. Dr. Socket Whitworth 5/8 6 point Length 43mm

Ko-ken 4400W-5/8 1/2 Sq. Dr. Socket Whitworth 5/8 6 point Length 43mm

SKU: KK-4400W-5/8
MPN: 4400W-5/8

Save $3.98
Ko-ken 4400W-7/16 1/2 Sq. Dr. Socket Whitworth 7/16 6 point Length 38mm

Ko-ken 4400W-7/16 1/2 Sq. Dr. Socket Whitworth 7/16 6 point Length 38mm

SKU: KK-4400W-7/16
MPN: 4400W-7/16

Save $2.46
Ko-ken 4400W-9/16 1/2 Sq. Dr. Socket Whitworth 9/16 6 point Length 42mm

Ko-ken 4400W-9/16 1/2 Sq. Dr. Socket Whitworth 9/16 6 point Length 42mm

SKU: KK-4400W-9/16
MPN: 4400W-9/16

Save $3.46
Ko-ken 4405W-1/2 1/2 Sq. Dr. Socket Whitworth 1/2 12 point Length 40mm

Ko-ken 4405W-1/2 1/2 Sq. Dr. Socket Whitworth 1/2 12 point Length 40mm

SKU: KK-4405W-1/2
MPN: 4405W-1/2

Save $2.66
Ko-ken 4405W-1/4 1/2 Sq. Dr. Socket Whitworth 1/4 12 point Length 37mm

Ko-ken 4405W-1/4 1/2 Sq. Dr. Socket Whitworth 1/4 12 point Length 37mm

SKU: KK-4405W-1/4
MPN: 4405W-1/4

Save $1.81
Ko-ken 4405W-11/16 1/2 Sq. Dr. Socket Whitworth 11/16 12 point Length 46mm

Ko-ken 4405W-11/16 1/2 Sq. Dr. Socket Whitworth 11/16 12 point Length 46mm

SKU: KK-4405W-11/16
MPN: 4405W-11/16

Save $4.55
Ko-ken 4405W-3/16 1/2 Sq. Dr. Socket Whitworth 3/16 12 point Length 37mm

Ko-ken 4405W-3/16 1/2 Sq. Dr. Socket Whitworth 3/16 12 point Length 37mm

SKU: KK-4405W-3/16
MPN: 4405W-3/16

Save $1.81
Ko-ken 4405W-3/4 1/2 Sq. Dr. Socket Whitworth 3/4 12 point Length 47mm

Ko-ken 4405W-3/4 1/2 Sq. Dr. Socket Whitworth 3/4 12 point Length 47mm

SKU: KK-4405W-3/4
MPN: 4405W-3/4

Save $6.68
Ko-ken 4405W-3/8 1/2 Sq. Dr. Socket Whitworth 3/8 12 point Length 37mm

Ko-ken 4405W-3/8 1/2 Sq. Dr. Socket Whitworth 3/8 12 point Length 37mm

SKU: KK-4405W-3/8
MPN: 4405W-3/8

Save $2.05
Ko-ken 4405W-5/16 1/2 Sq. Dr. Socket Whitworth 5/16 12 point Length 37mm

Ko-ken 4405W-5/16 1/2 Sq. Dr. Socket Whitworth 5/16 12 point Length 37mm

SKU: KK-4405W-5/16
MPN: 4405W-5/16

Save $1.90