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Ko-ken Tool Co., Ltd.

Ko-ken has stood for high-quality hand tools „Made in Japan“ for decades. The brand is known worldwide for precise manufacturing, durable materials and outstanding workmanship. In sockets and impact tools in particular, Ko-ken is the benchmark for professional use in industry, workshops and mobility.

Discover the tools from Ko-ken – built for everyone who relies on absolute reliability and precision.

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3/8″ Flexible Ratchet Handle, 72-tooth mechanism and release button, Z-SERIES

Item no.: 2726ZB-3/8

The Ko‑ken Flexible Ratchet Handle from the Z‑series combines precision with high flexibility. Its slim head and innovative mechanism ensure…

€ 145,35

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3/8" flexible ratchet handle, 72 tooth mechanism and release button, z series

1/4″ Flexible Ratchet Handles, 72-tooth mechanism, Z-SERIES

Item no.: 2726Z

The Ko-ken ratchet from the Z-Series offers excellent flexibility and precision during work. Its slim head and innovative mechanism ensure…

€ 117,95

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1/4" Flexible Ratchet, 72-tooth mechanism, Z-SERIES

1/4″ Long Ratchet, 72-Tooth Mechanism, Z-SERIES

Item no.: 2725Z-160

The Ko-ken ratchet from the Z-Series offers an excellent combination of flexibility and precision. Its slim head and innovative mechanism…

€ 101,10

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1/4″ Long Ratchet, 72-Tooth Mechanism, Z-SERIES

1/4″ Quick Spinner, Z-SERIES

Item no.: 2756Z

The Ko-ken Quick Spinner adapter ensures a secure and precise connection. Thanks to the special ball locking grooves, it guarantees…

€ 17,90

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1/4” Quick Spinner, Z-SERIES

1/4″ Flexible Ratchet Handle (long), 72-tooth mechanism, Z-SERIES

Item no.: 2726Z-160

The Ko-ken ratchet from the Z-Series offers excellent flexibility and precision on the job. The slim head and innovative mechanism…

€ 139,60

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1/4″ Flexible Ratchet (long), 72-tooth mechanism, Z-SERIES

1/4″ Ratchet, 72-Tooth Mechanism, Z-SERIES

Item no.: 2725Z

The Ko-ken ratchet from the Z-Series offers an excellent combination of flexibility and precision. The narrow head and innovative mechanism…

€ 79,35

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1/4″ Ratchet, 72-Tooth Mechanism, Z-SERIES

3/8″ Flexible Ratchet Handle, 72-Tooth Mechanism and Release Button, Z-SERIES

Item no.: 2726ZB-3/8(L160)

The Ko‑ken Flexible Ratchet Handle from the Z‑Series combines precision with high flexibility. Its slim head and innovative mechanism ensure…

€ 166,65

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3/8” flexible ratchet handle, 72-tooth mechanism and release button, z-series

3/8″ Hexagon Bit Socket, Z-SERIES, 50 mm

Item no.: 3010MZ-50

The Z-Series Hexagon Bit Socket impresses with its slim, robust design and enables precise and comfortable work.

from € 11,45

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3/8" Hexagon Bit Socket, Z-SERIES

3/8″ Hexagon Bit set, 8-piece set on magnetic rail, Z-SERIES

Item no.: RS3010MZ/8-L50

The Z-Series Bit set consists of 8 high-quality Bit Sockets, which are stored securely and clearly on a practical magnetic…

€ 120,35

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3/8" Hexagon Bit Set (long), 8-piece set on magnetic rail, Z-SERIES

1/4″ Extension Bar, Z-SERIES

Item no.: 2760Z

Ko-ken Z-Series Extension Bar: compact, precise and robust – ideal for moderate reach and hard-to-access areas.

from € 14,60

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1/4" Extension Bar, Z-SERIES

3/8″ Hexagon Bit Socket (long), Z-SERIES, 75 mm

Item no.: 3010MZ-75

The long Hexagon Bit Socket from the Z-Series impresses with its slim, robust design and guarantees precise and comfortable work.

from € 13,55

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3/8" Hexagon Bit Socket (long), Z-SERIES, 3/8" Hexagon Bit Socket (long), Z-SERIES - Diagram

Quick Spinners as an adapter 1/4″ to 3/8″, Z-SERIES

Item no.: 2756Z-3/8

The Ko-ken Quick Spinners as an adapter ensures a secure and precise connection. Thanks to the special ball-retaining grooves, it…

€ 20,25

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Quick Spinners as an adapter 1/4” to 3/8”, Z-SERIES

1/4″ Universal Joint, Z-SERIES

Item no.: 2771Z

The Universal Socket from Ko-ken’s Z-Series offers an even more secure connection between tools thanks to its special ball retention…

€ 25,50

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1/4″ Universal Joint, Z-SERIES

1/2″ Quick Spinner, Z-SERIES

Item no.: 2756Z-1/2

The Ko-ken Quick Spinner adapter ensures a secure and precise connection. Thanks to the special ball detent grooves, it guarantees…

€ 21,45

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1/2″ quick spinner, z series

1/4″ Double Joint, Z-SERIES

Item no.: 2772Z

The Ko-ken Z-Series double joint is a high-quality tool for professional use. With two flexible axes, the joint can move…

€ 40,40

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1/4” Double Joint, Z-SERIES

3/8″ TORX® Bit Socket, Z-SERIES, 50 mm

Item no.: 3025Z-50(T)

The Z-Series TORX® Bit Socket impresses with its slim, robust design, guaranteeing precise and comfortable work.

from € 13,05

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3/8'' TORX® Bit Socket, Z-SERIES

3/8″ TORX® Bit set (long), Z-Series

Item no.: RS3025Z/8-L50

The long-version TORX® Bit set from the Z-Series includes 8 Bit Sockets on a practical magnetic rail. The extended design…

€ 163,45

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3/8" TORX® Bit set (long), Z-Series

3/8″ Hexagon Bit Set (long), 8-piece set on magnetic rail, Z-SERIES

Item no.: RS3010MZ/8-L75

The long-version bit set from the Z-Series consists of 8 high-quality Bit Sockets, securely and clearly stored on a practical…

€ 136,35

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3/8" Hexagon Bit Set (long), 8-piece set on magnetic rail, Z-SERIES

3/8″ Spark Plug Socket, Z-SERIES, 70 mm

Item no.: 3300CZ

The Z-Series stands for exceptionally robust and durable tools, developed for professional use. This 6-point spark plug socket with integrated…

from € 27,30

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3/8″ Spark Plug Socket, Z-SERIES

3/8″ TORX® Bit Socket (long), Z-SERIES, 75 mm

Item no.: 3025Z-75(T)

The long TORX® Bit Sockets from the Z-Series impress with their slim, robust design, ensuring precise and comfortable work.

from € 15,90

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3/8'' TORX® Bit Sockets (long), Z-SERIES

3/8″ 6-point Ratchet Set with ratchet, Z SERIES

Item no.: 3285ZE

The ratchet set from the Z Series includes a selection of practical tools for precise work. You can find a…

€ 181,25

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3/8″ 6-point Socket Set with ratchet, Z SERIES

3/8″ Ratchet Set in Soft Foam Insert, Z-SERIES

Item no.: 3285Z

Perfect for precise work in confined spaces: The ratchet set features a fine-toothed 72-tooth ratchet, extension bars, a universal joint,…

€ 477,80

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3/8” Ratchet Set in Soft Foam Insert, Z-SERIES

3/8″ Ratchet Set in Soft Foam Insert (Inch), Z-SERIES

Item no.: 3285ZA

Perfect for precision work in tight spaces: The ratchet set features a fine-toothed 72-tooth ratchet, extension bars, universal joint, and…

€ 230,55

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3/8" Ratchet Set in Soft Foam Insert (Inch), Z-SERIES

3/8″ Ratchet Set in Soft Foam Insert, Z SERIES

Item no.: 3286Z

Perfect for precise work in tight spaces: The ratchet set includes a fine-tooth 72-tooth ratchet, extension bars, a universal joint,…

€ 377,20

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3/8″ Ratchet Set in Soft Foam Insert, Z SERIES

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Units

Units
  • Metric (141)
  • Inch (40)

Input drive

Input drive
  • 1/2" (65)
  • 3/8" (58)
  • 3/4" (48)

Input drive profile

Input drive profile
  • Internal Square (208)

Output size

Output size
  • 17mm (74)
  • 10mm (73)
  • 12mm (69)

Output profile

Output profile
  • Internal Hex (121)
  • Internal Double Hex (35)
  • Surface Drive (9)