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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″ Z-SERIES Extension Bar

Item no.: 3760Z

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

from € 15,90

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3/8" Z-SERIES Extension Bar

3/8″ Quick Spinners, Z-SERIES

Item no.: 3756ZS

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

€ 21,25

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3756ZS 3/8" Quick Spinners, Z-SERIES

3/8″ Locking Extension Bar Z-SERIES

Item no.: 3760LZ

The Z-Series locking extension bar enables precise work in hard-to-reach areas. Thanks to its robust construction and secure locking mechanism,…

from € 40,80

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3/8" Locking Extension Bar Z-SERIES

Quick Spinner Adapter 1/2″ to 3/8″, Z-SERIES

Item no.: 3756Z-1/2

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

€ 22,75

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Quick Spinner Adapter 1/2″ to 3/8″, Z-SERIES

3/8″ Quick Spinners, Z-SERIES

Item no.: 3756Z

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

€ 21,25

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3/8" Quick Spinners, Z-SERIES

3/8″ Hinge Handle 250 mm, Z SERIES

Item no.: 3768Z

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

from € 51,40

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3/8" hinge handle 250 mm, z series

1/2″ Impact Socket for Wheel Mounting, Z-SERIES, 65 mm

Item no.: 4300PMZ-65

The 1/2” impact socket is a robust and precise tool, specifically developed for the safe loosening and tightening of wheel…

from € 33,10

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1/2″ Impact Socket for Wheel Mounting, Z-SERIES

1/2” 6-point Socket, Z-SERIES

Item no.: 4400MZ

The 1/2″ 6-point socket from the Z Series in short version offers precise, safe work even in hard-to-reach areas.

from € 8,50

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1/2" 6-point socket, Z SERIES

3/8″ Universal Joint, Z SERIES

Item no.: 3772Z

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

€ 47,90

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3/8” Universal Joint, Z SERIES

1/2″ Ratchet Set in Soft Foam Insert, Z-SERIES

Item no.: 4285Z

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

€ 553,05

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1/2" Ratchet Set in Soft Foam Insert, Z-SERIES

1/2″ 6-point Ratchet Set, Z-SERIES

Item no.: 4285ZE

The Z-Series Ratchet Set includes a selection of practical tools for precise work. A detailed overview of the included sockets…

€ 289,90

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1/2″ 6-point Socket Set with Ratchet, Z-SERIES

3/8″ Universal Joint, Z-SERIES

Item no.: 3771Z

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

€ 30,00

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3/8″ Universal Joint, Z-SERIES

1/2″ Quick Spinner, Z-SERIES

Item no.: 4756Z

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

€ 28,85

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1/2″ Quick Spinner, Z-SERIES

1/2″ Ratchet, 72-Tooth Mechanism, Z-SERIES

Item no.: 4725Z

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

€ 141,85

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1/2″ Ratchet, 72-Tooth Mechanism, Z-SERIES

1/2″ ratchet, 72-tooth mechanism and release button, Z-SERIES

Item no.: 4725ZB

The Ko-ken Z-Series ratchet combines precision with high flexibility. Its slim head and innovative mechanism ensure exceptionally easy handling. With…

€ 156,05

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1/2″ ratchet, 72-tooth mechanism and release button, Z-SERIES

1/2″ 6-point Socket (set), 10-piece set on magnetic rail, Z-SERIES

Item no.: RS4400MZ/10

The Ko-ken Z-Series socket sets combine compact design with high load capacity. The robust sockets enable precise work even in…

€ 144,55

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1/2″ 6-point Socket (set), 10-piece set on magnetic rail, Z-SERIES

T-Handle for wheel installation, Z SERIES

Item no.: 4711XZ

The Z Series T-Handle for wheel installation from Ko-ken offers an easy-to-handle and safe solution for tightening and loosening wheel…

€ 170,20

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T-Handle for wheel installation, Z SERIES

1/2″ Locking Extension Bar Z-SERIES

Item no.: 4760LZ

The Z-Series locking extension bar enables precise work in hard-to-reach areas. Thanks to the robust design and secure locking mechanism,…

from € 67,85

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1/2" Locking Extension Bar Z-SERIES

1/2″ Lockable Extension Bar Z-SERIES

Item no.: 4760Z

The Z-Series lockable extension bar enables precise work in hard-to-reach areas. Thanks to its robust construction and secure locking mechanism,…

from € 28,00

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1/2" Lockable Extension Bar Z-SERIES

3/8″ Socket (set) (mix), 12-piece set on magnetic rail, Z-SERIES

Item no.: RS3X00MZ/12

The Z-Series 3/8″ Socket (set) (mix) consists of 12 high-quality sockets, clearly arranged on a practical magnetic rail. The slim…

€ 140,25

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3/8" Socket set (mix), 12-piece set on magnetic rail, Z-SERIES

1/2″ Universal Joint, Z-SERIES

Item no.: 4771Z

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

€ 34,20

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1/2″ Universal Joint, Z-SERIES

Plastic Retaining Clips

Item no.: RSAL Clip

Ko-ken’s magnetic rails allow for flexible and space-saving storage of Sockets, Bit Sockets, etc. The rails can be fitted with…

€ 0,70

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Magnetic Rail, Z-Series

1/4″ Ratchet Set in Plastic Case, Z-SERIES

Item no.: P2285Z

1/4″ Ratchet Set by Ko-ken – Ideal for precise fastening: Featuring a fine-toothed ratchet, practical Extension Bars, a universal joint,…

€ 340,05

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1/4″ Ratchet Set in Plastic Case, Z-SERIES

1/2″ Double Universal Joint, Z-SERIES

Item no.: 4772Z

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

€ 57,20

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1/2″ Double Universal Joint, 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)