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 2300MZ-10 1/4 Sq. Dr. Socket  10mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-10 1/4 Sq. Dr. Socket 10mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-10
MPN: 2300MZ-10

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-11 1/4 Sq. Dr. Socket  11mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-11 1/4 Sq. Dr. Socket 11mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-11
MPN: 2300MZ-11

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-12 1/4 Sq. Dr. Socket  12mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-12 1/4 Sq. Dr. Socket 12mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-12
MPN: 2300MZ-12

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-13 1/4 Sq. Dr. Socket  13mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-13 1/4 Sq. Dr. Socket 13mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-13
MPN: 2300MZ-13

Sale price $11.26 List price $14.07
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Ko-ken 2300MZ-14 1/4 Sq. Dr. Socket  14mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-14 1/4 Sq. Dr. Socket 14mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-14
MPN: 2300MZ-14

Sale price $11.26 List price $14.07
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Ko-ken 2300MZ-4 1/4 Sq. Dr. Socket  4mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-4 1/4 Sq. Dr. Socket 4mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-4
MPN: 2300MZ-4

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-4.5 1/4 Sq. Dr. Socket  4.5mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-4.5 1/4 Sq. Dr. Socket 4.5mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-4.5
MPN: 2300MZ-4.5

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-5 1/4 Sq. Dr. Socket  5mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-5 1/4 Sq. Dr. Socket 5mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-5
MPN: 2300MZ-5

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-5.5 1/4 Sq. Dr. Socket  5.5mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-5.5 1/4 Sq. Dr. Socket 5.5mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-5.5
MPN: 2300MZ-5.5

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-6 1/4 Sq. Dr. Socket  6mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-6 1/4 Sq. Dr. Socket 6mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-6
MPN: 2300MZ-6

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-7 1/4 Sq. Dr. Socket  7mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-7 1/4 Sq. Dr. Socket 7mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-7
MPN: 2300MZ-7

Sale price $10.28 List price $12.84
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Ko-ken 2300MZ-8 1/4 Sq. Dr. Socket  8mm 6 point Length 50mm Z-series

Ko-ken 2300MZ-8 1/4 Sq. Dr. Socket 8mm 6 point Length 50mm Z-series

SKU: KK-2300MZ-8
MPN: 2300MZ-8

Sale price $10.28 List price $12.84
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Ko-ken 3300MZ-10 3/8 Sq. Dr. Socket  10mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-10 3/8 Sq. Dr. Socket 10mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-10
MPN: 3300MZ-10

Sale price $10.28 List price $12.84
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Ko-ken 3300MZ-11 3/8 Sq. Dr. Socket  11mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-11 3/8 Sq. Dr. Socket 11mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-11
MPN: 3300MZ-11

Sale price $10.28 List price $12.84
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Ko-ken 3300MZ-12 3/8 Sq. Dr. Socket  12mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-12 3/8 Sq. Dr. Socket 12mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-12
MPN: 3300MZ-12

Sale price $10.28 List price $12.84
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Ko-ken 3300MZ-13 3/8 Sq. Dr. Socket  13mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-13 3/8 Sq. Dr. Socket 13mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-13
MPN: 3300MZ-13

Sale price $11.26 List price $14.07
Save $2.81
Ko-ken 3300MZ-14 3/8 Sq. Dr. Socket  14mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-14 3/8 Sq. Dr. Socket 14mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-14
MPN: 3300MZ-14

Sale price $11.26 List price $14.07
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Ko-ken 3300MZ-15 3/8 Sq. Dr. Socket  15mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-15 3/8 Sq. Dr. Socket 15mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-15
MPN: 3300MZ-15

Sale price $11.26 List price $14.07
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Ko-ken 3300MZ-16 3/8 Sq. Dr. Socket  16mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-16 3/8 Sq. Dr. Socket 16mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-16
MPN: 3300MZ-16

Sale price $11.26 List price $14.07
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Ko-ken 3300MZ-17 3/8 Sq. Dr. Socket  17mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-17 3/8 Sq. Dr. Socket 17mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-17
MPN: 3300MZ-17

Sale price $11.26 List price $14.07
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Ko-ken 3300MZ-18 3/8 Sq. Dr. Socket  18mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-18 3/8 Sq. Dr. Socket 18mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-18
MPN: 3300MZ-18

Sale price $13.15 List price $16.43
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Ko-ken 3300MZ-19 3/8 Sq. Dr. Socket  19mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-19 3/8 Sq. Dr. Socket 19mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-19
MPN: 3300MZ-19

Sale price $13.15 List price $16.43
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Ko-ken 3300MZ-7 3/8 Sq. Dr. Socket  7mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-7 3/8 Sq. Dr. Socket 7mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-7
MPN: 3300MZ-7

Sale price $10.28 List price $12.84
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Ko-ken 3300MZ-8 3/8 Sq. Dr. Socket  8mm 6 point Length 55mm Z-series

Ko-ken 3300MZ-8 3/8 Sq. Dr. Socket 8mm 6 point Length 55mm Z-series

SKU: KK-3300MZ-8
MPN: 3300MZ-8

Sale price $10.28 List price $12.84
Save $2.56