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 RS4010A/10-L60 1/2 Sq. Dr. Bit Socket set  3/16-3/4 Hex 300mm  10 pieces

Ko-ken RS4010A/10-L60 1/2 Sq. Dr. Bit Socket set 3/16-3/4 Hex 300mm 10 pieces

SKU: KK-RS4010A/10-L60
MPN: RS4010A/10-L60

Regular price $146.41
Ko-ken RS4010M/10-L50 1/2 Sq. Dr. Bit Socket set  4mm-19mm Hex 300mm  10 pieces

Ko-ken RS4010M/10-L50 1/2 Sq. Dr. Bit Socket set 4mm-19mm Hex 300mm 10 pieces

SKU: KK-RS4010M/10-L50
MPN: RS4010M/10-L50

Regular price $123.92
Ko-ken RS4010M/10-L75 1/2 Sq. Dr. Bit Socket set  4mm-19mm Hex 300mm  10 pieces

Ko-ken RS4010M/10-L75 1/2 Sq. Dr. Bit Socket set 4mm-19mm Hex 300mm 10 pieces

SKU: KK-RS4010M/10-L75
MPN: RS4010M/10-L75

Regular price $130.40
Ko-ken RS4012A/10-L60 1/2 Sq. Dr. Bit Socket set  3/16-3/4 Hex 300mm  10 pieces

Ko-ken RS4012A/10-L60 1/2 Sq. Dr. Bit Socket set 3/16-3/4 Hex 300mm 10 pieces

SKU: KK-RS4012A/10-L60
MPN: RS4012A/10-L60

Regular price $151.89
Ko-ken RS4012M/10-L60 1/2 Sq. Dr. Bit Socket set  4mm-19mm Hex 300mm  10 pieces

Ko-ken RS4012M/10-L60 1/2 Sq. Dr. Bit Socket set 4mm-19mm Hex 300mm 10 pieces

SKU: KK-RS4012M/10-L60
MPN: RS4012M/10-L60

Regular price $136.38