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KK Hand Tools

Ko-Ken hand tools include professional-grade tools and accessories used for assembly, maintenance, and repair in automotive, industrial, and MRO environments (application dependent). Technicians and maintenance teams typically choose these tools for consistent fit on fasteners, durability under daily use, and better access in tight spaces. Because “hand tools” covers many categories, selecting the right item is mainly about matching the tool type and specifications to your fastener sizes, drive system, and working conditions (per listing).


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 3341G.70-10 3/8 Sq. Dr. Universal Socket 10mm Nut Grip Length 70mm For Glow Plug

Ko-ken 3341G.70-10 3/8 Sq. Dr. Universal Socket 10mm Nut Grip Length 70mm For Glow Plug

SKU: KK-3341G.70-10
MPN: 3341G.70-10

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Ko-ken 3341G.70-11 3/8 Sq. Dr. Universal Socket 11mm Nut Grip Length 70mm For Glow Plug

Ko-ken 3341G.70-11 3/8 Sq. Dr. Universal Socket 11mm Nut Grip Length 70mm For Glow Plug

SKU: KK-3341G.70-11
MPN: 3341G.70-11

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Ko-ken 3341G.70-12 3/8 Sq. Dr. Universal Socket 12mm Nut Grip Length 70mm For Glow Plug

Ko-ken 3341G.70-12 3/8 Sq. Dr. Universal Socket 12mm Nut Grip Length 70mm For Glow Plug

SKU: KK-3341G.70-12
MPN: 3341G.70-12

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Ko-ken 3341G.89-10 3/8 Sq. Dr. Universal Socket 10mm Nut Grip Length 89mm For Glow Plug

Ko-ken 3341G.89-10 3/8 Sq. Dr. Universal Socket 10mm Nut Grip Length 89mm For Glow Plug

SKU: KK-3341G.89-10
MPN: 3341G.89-10

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Ko-ken 3341G.89-12(DP52) 3/8 Sq. Dr. Universal Socket 12mm Nut Grip Length 89mm For Glow Plug

Ko-ken 3341G.89-12(DP52) 3/8 Sq. Dr. Universal Socket 12mm Nut Grip Length 89mm For Glow Plug

SKU: KK-3341G.89-12(DP52)
MPN: 3341G.89-12(DP52)

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Ko-ken 3341G.89-8 3/8 Sq. Dr. Universal Socket 8mm Nut Grip Length 89mm For Glow Plug

Ko-ken 3341G.89-8 3/8 Sq. Dr. Universal Socket 8mm Nut Grip Length 89mm For Glow Plug

SKU: KK-3341G.89-8
MPN: 3341G.89-8

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Ko-ken 3341G.89-9 3/8 Sq. Dr. Universal Socket 9mm Nut Grip Length 89mm For Glow Plug

Ko-ken 3341G.89-9 3/8 Sq. Dr. Universal Socket 9mm Nut Grip Length 89mm For Glow Plug

SKU: KK-3341G.89-9
MPN: 3341G.89-9

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Ko-ken 3342G.150-8 3/8 Sq. Dr. Universal Socket 8mm 6 point Length 150mm For Glow Plug

Ko-ken 3342G.150-8 3/8 Sq. Dr. Universal Socket 8mm 6 point Length 150mm For Glow Plug

SKU: KK-3342G.150-8
MPN: 3342G.150-8

Save $13.63
Ko-ken 3430M-10 3/8 Sq. Dr. Universal Bit Socket 10mm Hex Length 62mm

Ko-ken 3430M-10 3/8 Sq. Dr. Universal Bit Socket 10mm Hex Length 62mm

SKU: KK-3430M-10
MPN: 3430M-10

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Ko-ken 3430M-12 3/8 Sq. Dr. Universal Bit Socket 12mm Hex Length 62mm

Ko-ken 3430M-12 3/8 Sq. Dr. Universal Bit Socket 12mm Hex Length 62mm

SKU: KK-3430M-12
MPN: 3430M-12

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Ko-ken 3430M-5 3/8 Sq. Dr. Universal Bit Socket 5mm Hex Length 62mm

Ko-ken 3430M-5 3/8 Sq. Dr. Universal Bit Socket 5mm Hex Length 62mm

SKU: KK-3430M-5
MPN: 3430M-5

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Ko-ken 3430M-6 3/8 Sq. Dr. Universal Bit Socket 6mm Hex Length 62mm

Ko-ken 3430M-6 3/8 Sq. Dr. Universal Bit Socket 6mm Hex Length 62mm

SKU: KK-3430M-6
MPN: 3430M-6

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Ko-ken 3430M-7 3/8 Sq. Dr. Universal Bit Socket 7mm Hex Length 62mm

Ko-ken 3430M-7 3/8 Sq. Dr. Universal Bit Socket 7mm Hex Length 62mm

SKU: KK-3430M-7
MPN: 3430M-7

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Ko-ken 3430M-8 3/8 Sq. Dr. Universal Bit Socket 8mm Hex Length 62mm

Ko-ken 3430M-8 3/8 Sq. Dr. Universal Bit Socket 8mm Hex Length 62mm

SKU: KK-3430M-8
MPN: 3430M-8

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Ko-ken 3440A-1/2 3/8 Sq. Dr. Universal Socket 1/2 6 point Length 51mm

Ko-ken 3440A-1/2 3/8 Sq. Dr. Universal Socket 1/2 6 point Length 51mm

SKU: KK-3440A-1/2
MPN: 3440A-1/2

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Ko-ken 3440A-11/16 3/8 Sq. Dr. Universal Socket 11/16 6 point Length 54.5mm

Ko-ken 3440A-11/16 3/8 Sq. Dr. Universal Socket 11/16 6 point Length 54.5mm

SKU: KK-3440A-11/16
MPN: 3440A-11/16

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Ko-ken 3440A-3/4 3/8 Sq. Dr. Universal Socket 3/4 6 point Length 56.5mm

Ko-ken 3440A-3/4 3/8 Sq. Dr. Universal Socket 3/4 6 point Length 56.5mm

SKU: KK-3440A-3/4
MPN: 3440A-3/4

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Ko-ken 3440A-3/8 3/8 Sq. Dr. Universal Socket 3/8 6 point Length 48mm

Ko-ken 3440A-3/8 3/8 Sq. Dr. Universal Socket 3/8 6 point Length 48mm

SKU: KK-3440A-3/8
MPN: 3440A-3/8

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Ko-ken 3440A-5/16 3/8 Sq. Dr. Universal Socket 5/16 6 point Length 47mm

Ko-ken 3440A-5/16 3/8 Sq. Dr. Universal Socket 5/16 6 point Length 47mm

SKU: KK-3440A-5/16
MPN: 3440A-5/16

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Ko-ken 3440A-5/8 3/8 Sq. Dr. Universal Socket 5/8 6 point Length 53.5mm

Ko-ken 3440A-5/8 3/8 Sq. Dr. Universal Socket 5/8 6 point Length 53.5mm

SKU: KK-3440A-5/8
MPN: 3440A-5/8

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Ko-ken 3440A-7/16 3/8 Sq. Dr. Universal Socket 7/16 6 point Length 49.5mm

Ko-ken 3440A-7/16 3/8 Sq. Dr. Universal Socket 7/16 6 point Length 49.5mm

SKU: KK-3440A-7/16
MPN: 3440A-7/16

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Ko-ken 3440A-9/16 3/8 Sq. Dr. Universal Socket 9/16 6 point Length 51mm

Ko-ken 3440A-9/16 3/8 Sq. Dr. Universal Socket 9/16 6 point Length 51mm

SKU: KK-3440A-9/16
MPN: 3440A-9/16

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Ko-ken 3440M-10 3/8 Sq. Dr. Universal Socket 10mm 6 point Length 48.5mm

Ko-ken 3440M-10 3/8 Sq. Dr. Universal Socket 10mm 6 point Length 48.5mm

SKU: KK-3440M-10
MPN: 3440M-10

Save $6.45
Ko-ken 3440M-11 3/8 Sq. Dr. Universal Socket 11mm 6 point Length 49.5mm

Ko-ken 3440M-11 3/8 Sq. Dr. Universal Socket 11mm 6 point Length 49.5mm

SKU: KK-3440M-11
MPN: 3440M-11

Save $6.45