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KK Z-Series

Ko-Ken Z-Series

Ko-Ken Z-Series: Professional-Grade Impact Sockets

Discover the Ko-Ken Z-Series: the next generation of professional-grade impact sockets and accessories, engineered for demanding industrial and automotive applications. As an ISO-certified distributor, Freer Tool & Supply proudly offers Ko-Ken’s Z-Series—designed for low-profile, hard-to-reach locations where standard sockets fall short. Each Z-Series socket and accessory is crafted with advanced materials and precise Japanese manufacturing, ensuring maximum durability, strength, and reliability under heavy loads.

Ko-ken 3400MZ-5.5 3/8 Sq. Dr. Socket 5.5mm 6 point Length 19mm Z-series

Ko-ken 3400MZ-5.5 3/8 Sq. Dr. Socket 5.5mm 6 point Length 19mm Z-series

SKU: KK-3400MZ-5.5
MPN: 3400MZ-5.5

Save $1.57
Ko-ken 3400MZ-6 3/8 Sq. Dr. Socket 6mm 6 point Length 19mm Z-series

Ko-ken 3400MZ-6 3/8 Sq. Dr. Socket 6mm 6 point Length 19mm Z-series

SKU: KK-3400MZ-6
MPN: 3400MZ-6

Save $1.57
Ko-ken 3400MZ-7 3/8 Sq. Dr. Socket 7mm 6 point Length 19mm Z-series

Ko-ken 3400MZ-7 3/8 Sq. Dr. Socket 7mm 6 point Length 19mm Z-series

SKU: KK-3400MZ-7
MPN: 3400MZ-7

Save $1.57
Ko-ken 3400MZ-8 3/8 Sq. Dr. Socket 8mm 6 point Length 20mm Z-series

Ko-ken 3400MZ-8 3/8 Sq. Dr. Socket 8mm 6 point Length 20mm Z-series

SKU: KK-3400MZ-8
MPN: 3400MZ-8

Save $1.57
Ko-ken 4285Z 1/2 Sq. Dr. Socket set Z-series 21 pieces

Ko-ken 4285Z 1/2 Sq. Dr. Socket set Z-series 21 pieces

SKU: KK-4285Z
MPN: 4285Z

Save $122.20
Ko-ken 4285ZE 1/2 Sq. Dr. Socket set Z-series 11 pieces

Ko-ken 4285ZE 1/2 Sq. Dr. Socket set Z-series 11 pieces

SKU: KK-4285ZE
MPN: 4285ZE

Save $62.67
Ko-ken 4400MZ-10 1/2 Sq. Dr. Socket 10mm 6 point Length 26mm Z-series

Ko-ken 4400MZ-10 1/2 Sq. Dr. Socket 10mm 6 point Length 26mm Z-series

SKU: KK-4400MZ-10
MPN: 4400MZ-10

Save $1.89
Ko-ken 4400MZ-12 1/2 Sq. Dr. Socket 12mm 6 point Length 27mm Z-series

Ko-ken 4400MZ-12 1/2 Sq. Dr. Socket 12mm 6 point Length 27mm Z-series

SKU: KK-4400MZ-12
MPN: 4400MZ-12

Save $1.89
Ko-ken 4400MZ-13 1/2 Sq. Dr. Socket 13mm 6 point Length 28mm Z-series

Ko-ken 4400MZ-13 1/2 Sq. Dr. Socket 13mm 6 point Length 28mm Z-series

SKU: KK-4400MZ-13
MPN: 4400MZ-13

Save $1.89
Ko-ken 4400MZ-14 1/2 Sq. Dr. Socket 14mm 6 point Length 28mm Z-series

Ko-ken 4400MZ-14 1/2 Sq. Dr. Socket 14mm 6 point Length 28mm Z-series

SKU: KK-4400MZ-14
MPN: 4400MZ-14

Save $1.92
Ko-ken 4400MZ-16 1/2 Sq. Dr. Socket 16mm 6 point Length 29mm Z-series

Ko-ken 4400MZ-16 1/2 Sq. Dr. Socket 16mm 6 point Length 29mm Z-series

SKU: KK-4400MZ-16
MPN: 4400MZ-16

Save $2.01
Ko-ken 4400MZ-17 1/2 Sq. Dr. Socket 17mm 6 point Length 29mm Z-series

Ko-ken 4400MZ-17 1/2 Sq. Dr. Socket 17mm 6 point Length 29mm Z-series

SKU: KK-4400MZ-17
MPN: 4400MZ-17

Save $2.01
Ko-ken 4400MZ-18 1/2 Sq. Dr. Socket 18mm 6 point Length 29mm Z-series

Ko-ken 4400MZ-18 1/2 Sq. Dr. Socket 18mm 6 point Length 29mm Z-series

SKU: KK-4400MZ-18
MPN: 4400MZ-18

Save $2.16
Ko-ken 4400MZ-19 1/2 Sq. Dr. Socket 19mm 6 point Length 29mm Z-series

Ko-ken 4400MZ-19 1/2 Sq. Dr. Socket 19mm 6 point Length 29mm Z-series

SKU: KK-4400MZ-19
MPN: 4400MZ-19

Save $2.16
Ko-ken 4400MZ-21 1/2 Sq. Dr. Socket 21mm 6 point Length 29mm Z-series

Ko-ken 4400MZ-21 1/2 Sq. Dr. Socket 21mm 6 point Length 29mm Z-series

SKU: KK-4400MZ-21
MPN: 4400MZ-21

Save $2.98
Ko-ken 4400MZ-22 1/2 Sq. Dr. Socket 22mm 6 point Length 29mm Z-series

Ko-ken 4400MZ-22 1/2 Sq. Dr. Socket 22mm 6 point Length 29mm Z-series

SKU: KK-4400MZ-22
MPN: 4400MZ-22

Save $2.98
Ko-ken 4400MZ-24 1/2 Sq. Dr. Socket 24mm 6 point Length 29mm Z-series

Ko-ken 4400MZ-24 1/2 Sq. Dr. Socket 24mm 6 point Length 29mm Z-series

SKU: KK-4400MZ-24
MPN: 4400MZ-24

Save $3.43
Ko-ken 4400MZ-27 1/2 Sq. Dr. Socket 27mm 6 point Length 30mm Z-series

Ko-ken 4400MZ-27 1/2 Sq. Dr. Socket 27mm 6 point Length 30mm Z-series

SKU: KK-4400MZ-27
MPN: 4400MZ-27

Save $3.84
Ko-ken 4400MZ-30 1/2 Sq. Dr. Socket 30mm 6 point Length 31mm Z-series

Ko-ken 4400MZ-30 1/2 Sq. Dr. Socket 30mm 6 point Length 31mm Z-series

SKU: KK-4400MZ-30
MPN: 4400MZ-30

Save $4.07
Ko-ken 4400MZ-32 1/2 Sq. Dr. Socket 32mm 6 point Length 32mm Z-series

Ko-ken 4400MZ-32 1/2 Sq. Dr. Socket 32mm 6 point Length 32mm Z-series

SKU: KK-4400MZ-32
MPN: 4400MZ-32

Save $4.40
Ko-ken 4400MZ-8 1/2 Sq. Dr. Socket 8mm 6 point Length 26mm Z-series

Ko-ken 4400MZ-8 1/2 Sq. Dr. Socket 8mm 6 point Length 26mm Z-series

SKU: KK-4400MZ-8
MPN: 4400MZ-8

Save $1.89
Ko-ken P2285Z 1/4 Sq. Dr. Socket set Z-series 26 pieces

Ko-ken P2285Z 1/4 Sq. Dr. Socket set Z-series 26 pieces

SKU: KK-P2285Z
MPN: P2285Z

Save $76.69
Ko-ken RS2300XZ/9 1/4 Sq. Dr. Socket set 5.5-14mm 6 point Z-series 9 pieces

Ko-ken RS2300XZ/9 1/4 Sq. Dr. Socket set 5.5-14mm 6 point Z-series 9 pieces

SKU: KK-RS2300XZ/9
MPN: RS2300XZ/9

Save $30.85
Ko-ken RS2400MZ/12 1/4 Sq. Dr. Socket set 4-14mm 6 point Z-series 12 pieces

Ko-ken RS2400MZ/12 1/4 Sq. Dr. Socket set 4-14mm 6 point Z-series 12 pieces

SKU: KK-RS2400MZ/12
MPN: RS2400MZ/12

Save $26.02