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 2020.28-M4 1/4 Sq. Dr. Bit Socket XZN M4  Length 28mm

Ko-ken 2020.28-M4 1/4 Sq. Dr. Bit Socket XZN M4 Length 28mm

SKU: KK-2020.28-M4
MPN: 2020.28-M4

Sale price $10.17 List price $12.71
Save $2.54
Ko-ken 2020.28-M5 1/4 Sq. Dr. Bit Socket XZN M5  Length 28mm

Ko-ken 2020.28-M5 1/4 Sq. Dr. Bit Socket XZN M5 Length 28mm

SKU: KK-2020.28-M5
MPN: 2020.28-M5

Sale price $10.17 List price $12.71
Save $2.54
Ko-ken 2020.28-M6 1/4 Sq. Dr. Bit Socket XZN M6  Length 28mm

Ko-ken 2020.28-M6 1/4 Sq. Dr. Bit Socket XZN M6 Length 28mm

SKU: KK-2020.28-M6
MPN: 2020.28-M6

Sale price $10.17 List price $12.71
Save $2.54
Ko-ken 2020.28-M8 1/4 Sq. Dr. Bit Socket XZN M8  Length 28mm

Ko-ken 2020.28-M8 1/4 Sq. Dr. Bit Socket XZN M8 Length 28mm

SKU: KK-2020.28-M8
MPN: 2020.28-M8

Sale price $10.17 List price $12.71
Save $2.54
Ko-ken 2020.50-M4 1/4 Sq. Dr. Bit Socket XZN M4  Length 50mm

Ko-ken 2020.50-M4 1/4 Sq. Dr. Bit Socket XZN M4 Length 50mm

SKU: KK-2020.50-M4
MPN: 2020.50-M4

Sale price $11.60 List price $14.50
Save $2.90
Ko-ken 2020.50-M5 1/4 Sq. Dr. Bit Socket XZN M5  Length 50mm

Ko-ken 2020.50-M5 1/4 Sq. Dr. Bit Socket XZN M5 Length 50mm

SKU: KK-2020.50-M5
MPN: 2020.50-M5

Sale price $11.60 List price $14.50
Save $2.90
Ko-ken 2020.50-M6 1/4 Sq. Dr. Bit Socket XZN M6  Length 50mm

Ko-ken 2020.50-M6 1/4 Sq. Dr. Bit Socket XZN M6 Length 50mm

SKU: KK-2020.50-M6
MPN: 2020.50-M6

Sale price $11.60 List price $14.50
Save $2.90
Ko-ken 2020.50-M8 1/4 Sq. Dr. Bit Socket XZN M8  Length 50mm

Ko-ken 2020.50-M8 1/4 Sq. Dr. Bit Socket XZN M8 Length 50mm

SKU: KK-2020.50-M8
MPN: 2020.50-M8

Sale price $11.60 List price $14.50
Save $2.90
Ko-ken 3020.100-M10 3/8 Sq. Dr. Bit Socket XZN M10 Triple Square Length 100mm

Ko-ken 3020.100-M10 3/8 Sq. Dr. Bit Socket XZN M10 Triple Square Length 100mm

SKU: KK-3020.100-M10
MPN: 3020.100-M10

Sale price $13.87 List price $17.33
Save $3.46
Ko-ken 3020.100-M12 3/8 Sq. Dr. Bit Socket XZN M12 Triple Square Length 100mm

Ko-ken 3020.100-M12 3/8 Sq. Dr. Bit Socket XZN M12 Triple Square Length 100mm

SKU: KK-3020.100-M12
MPN: 3020.100-M12

Sale price $14.51 List price $18.13
Save $3.62
Ko-ken 3020.100-M14 3/8 Sq. Dr. Bit Socket XZN M14 Triple Square Length 100mm

Ko-ken 3020.100-M14 3/8 Sq. Dr. Bit Socket XZN M14 Triple Square Length 100mm

SKU: KK-3020.100-M14
MPN: 3020.100-M14

Sale price $16.78 List price $20.97
Save $4.19
Ko-ken 3020.100-M4 3/8 Sq. Dr. Bit Socket XZN M4 Triple Square Length 100mm

Ko-ken 3020.100-M4 3/8 Sq. Dr. Bit Socket XZN M4 Triple Square Length 100mm

SKU: KK-3020.100-M4
MPN: 3020.100-M4

Sale price $12.92 List price $16.15
Save $3.23
Ko-ken 3020.100-M5 3/8 Sq. Dr. Bit Socket XZN M5 Triple Square Length 100mm

Ko-ken 3020.100-M5 3/8 Sq. Dr. Bit Socket XZN M5 Triple Square Length 100mm

SKU: KK-3020.100-M5
MPN: 3020.100-M5

Sale price $12.92 List price $16.15
Save $3.23
Ko-ken 3020.100-M6 3/8 Sq. Dr. Bit Socket XZN M6 Triple Square Length 100mm

Ko-ken 3020.100-M6 3/8 Sq. Dr. Bit Socket XZN M6 Triple Square Length 100mm

SKU: KK-3020.100-M6
MPN: 3020.100-M6

Sale price $12.92 List price $16.15
Save $3.23
Ko-ken 3020.100-M8 3/8 Sq. Dr. Bit Socket XZN M8 Triple Square Length 100mm

Ko-ken 3020.100-M8 3/8 Sq. Dr. Bit Socket XZN M8 Triple Square Length 100mm

SKU: KK-3020.100-M8
MPN: 3020.100-M8

Sale price $12.92 List price $16.15
Save $3.23
Ko-ken 3020.120-M10 3/8 Sq. Dr. Bit Socket XZN M10 Triple Square Length 120mm

Ko-ken 3020.120-M10 3/8 Sq. Dr. Bit Socket XZN M10 Triple Square Length 120mm

SKU: KK-3020.120-M10
MPN: 3020.120-M10

Sale price $14.40 List price $17.99
Save $3.59
Ko-ken 3020.120-M12 3/8 Sq. Dr. Bit Socket XZN M12 Triple Square Length 120mm

Ko-ken 3020.120-M12 3/8 Sq. Dr. Bit Socket XZN M12 Triple Square Length 120mm

SKU: KK-3020.120-M12
MPN: 3020.120-M12

Sale price $15.49 List price $19.36
Save $3.87
Ko-ken 3020.120-M14 3/8 Sq. Dr. Bit Socket XZN M14 Triple Square Length 120mm

Ko-ken 3020.120-M14 3/8 Sq. Dr. Bit Socket XZN M14 Triple Square Length 120mm

SKU: KK-3020.120-M14
MPN: 3020.120-M14

Sale price $17.68 List price $22.09
Save $4.41
Ko-ken 3020.120-M4 3/8 Sq. Dr. Bit Socket XZN M4 Triple Square Length 120mm

Ko-ken 3020.120-M4 3/8 Sq. Dr. Bit Socket XZN M4 Triple Square Length 120mm

SKU: KK-3020.120-M4
MPN: 3020.120-M4

Sale price $14.01 List price $17.51
Save $3.50
Ko-ken 3020.120-M5 3/8 Sq. Dr. Bit Socket XZN M5 Triple Square Length 120mm

Ko-ken 3020.120-M5 3/8 Sq. Dr. Bit Socket XZN M5 Triple Square Length 120mm

SKU: KK-3020.120-M5
MPN: 3020.120-M5

Sale price $14.01 List price $17.51
Save $3.50
Ko-ken 3020.120-M6 3/8 Sq. Dr. Bit Socket XZN M6 Triple Square Length 120mm

Ko-ken 3020.120-M6 3/8 Sq. Dr. Bit Socket XZN M6 Triple Square Length 120mm

SKU: KK-3020.120-M6
MPN: 3020.120-M6

Sale price $14.01 List price $17.51
Save $3.50
Ko-ken 3020.120-M8 3/8 Sq. Dr. Bit Socket XZN M8 Triple Square Length 120mm

Ko-ken 3020.120-M8 3/8 Sq. Dr. Bit Socket XZN M8 Triple Square Length 120mm

SKU: KK-3020.120-M8
MPN: 3020.120-M8

Sale price $14.01 List price $17.51
Save $3.50
Ko-ken 3020.38-M10 3/8 Sq. Dr. Bit Socket XZN M10 Triple Square Length 38mm

Ko-ken 3020.38-M10 3/8 Sq. Dr. Bit Socket XZN M10 Triple Square Length 38mm

SKU: KK-3020.38-M10
MPN: 3020.38-M10

Sale price $12.12 List price $15.15
Save $3.03
Ko-ken 3020.38-M12 3/8 Sq. Dr. Bit Socket XZN M12 Triple Square Length 38mm

Ko-ken 3020.38-M12 3/8 Sq. Dr. Bit Socket XZN M12 Triple Square Length 38mm

SKU: KK-3020.38-M12
MPN: 3020.38-M12

Sale price $12.76 List price $15.95
Save $3.19