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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 4300A-19/32 1/2 Sq. Dr. Socket 19/32 6 point Length 77mm

Ko-ken 4300A-19/32 1/2 Sq. Dr. Socket 19/32 6 point Length 77mm

SKU: KK-4300A-19/32
MPN: 4300A-19/32

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Ko-ken 4300A-21/32 1/2 Sq. Dr. Socket 21/32 6 point Length 77mm

Ko-ken 4300A-21/32 1/2 Sq. Dr. Socket 21/32 6 point Length 77mm

SKU: KK-4300A-21/32
MPN: 4300A-21/32

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Ko-ken 4300A-25/32 1/2 Sq. Dr. Socket 25/32 6 point Length 77mm

Ko-ken 4300A-25/32 1/2 Sq. Dr. Socket 25/32 6 point Length 77mm

SKU: KK-4300A-25/32
MPN: 4300A-25/32

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Ko-ken 4300A-3/4 1/2 Sq. Dr. Socket 3/4 6 point Length 77mm

Ko-ken 4300A-3/4 1/2 Sq. Dr. Socket 3/4 6 point Length 77mm

SKU: KK-4300A-3/4
MPN: 4300A-3/4

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Ko-ken 4300A-3/8 1/2 Sq. Dr. Socket 3/8 6 point Length 77mm

Ko-ken 4300A-3/8 1/2 Sq. Dr. Socket 3/8 6 point Length 77mm

SKU: KK-4300A-3/8
MPN: 4300A-3/8

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Ko-ken 4300A-31/32 1/2 Sq. Dr. Socket 31/32 6 point Length 77mm

Ko-ken 4300A-31/32 1/2 Sq. Dr. Socket 31/32 6 point Length 77mm

SKU: KK-4300A-31/32
MPN: 4300A-31/32

Save $5.57
Ko-ken 4300A-5/16 1/2 Sq. Dr. Socket 5/16 6 point Length 77mm

Ko-ken 4300A-5/16 1/2 Sq. Dr. Socket 5/16 6 point Length 77mm

SKU: KK-4300A-5/16
MPN: 4300A-5/16

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Ko-ken 4300A-5/8 1/2 Sq. Dr. Socket 5/8 6 point Length 77mm

Ko-ken 4300A-5/8 1/2 Sq. Dr. Socket 5/8 6 point Length 77mm

SKU: KK-4300A-5/8
MPN: 4300A-5/8

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Ko-ken 4300A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 77mm

Ko-ken 4300A-7/16 1/2 Sq. Dr. Socket 7/16 6 point Length 77mm

SKU: KK-4300A-7/16
MPN: 4300A-7/16

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Ko-ken 4300A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 77mm

Ko-ken 4300A-7/8 1/2 Sq. Dr. Socket 7/8 6 point Length 77mm

SKU: KK-4300A-7/8
MPN: 4300A-7/8

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Ko-ken 4300A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 77mm

Ko-ken 4300A-9/16 1/2 Sq. Dr. Socket 9/16 6 point Length 77mm

SKU: KK-4300A-9/16
MPN: 4300A-9/16

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Ko-ken 4300M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 77mm

Ko-ken 4300M-10 1/2 Sq. Dr. Socket 10mm 6 point Length 77mm

SKU: KK-4300M-10
MPN: 4300M-10

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Ko-ken 4300M-10(L120) 1/2 Sq. Dr. Socket 10mm 6 point Length 120mm

Ko-ken 4300M-10(L120) 1/2 Sq. Dr. Socket 10mm 6 point Length 120mm

SKU: KK-4300M-10(L120)
MPN: 4300M-10(L120)

Save $10.31
Ko-ken 4300M-11 1/2 Sq. Dr. Socket 11mm 6 point Length 77mm

Ko-ken 4300M-11 1/2 Sq. Dr. Socket 11mm 6 point Length 77mm

SKU: KK-4300M-11
MPN: 4300M-11

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Ko-ken 4300M-12 1/2 Sq. Dr. Socket 12mm 6 point Length 77mm

Ko-ken 4300M-12 1/2 Sq. Dr. Socket 12mm 6 point Length 77mm

SKU: KK-4300M-12
MPN: 4300M-12

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Ko-ken 4300M-12(L120) 1/2 Sq. Dr. Socket 12mm 6 point Length 120mm

Ko-ken 4300M-12(L120) 1/2 Sq. Dr. Socket 12mm 6 point Length 120mm

SKU: KK-4300M-12(L120)
MPN: 4300M-12(L120)

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Ko-ken 4300M-13 1/2 Sq. Dr. Socket 13mm 6 point Length 77mm

Ko-ken 4300M-13 1/2 Sq. Dr. Socket 13mm 6 point Length 77mm

SKU: KK-4300M-13
MPN: 4300M-13

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Ko-ken 4300M-14 1/2 Sq. Dr. Socket 14mm 6 point Length 77mm

Ko-ken 4300M-14 1/2 Sq. Dr. Socket 14mm 6 point Length 77mm

SKU: KK-4300M-14
MPN: 4300M-14

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Ko-ken 4300M-14(L120) 1/2 Sq. Dr. Socket 14mm 6 point Length 120mm

Ko-ken 4300M-14(L120) 1/2 Sq. Dr. Socket 14mm 6 point Length 120mm

SKU: KK-4300M-14(L120)
MPN: 4300M-14(L120)

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Ko-ken 4300M-15 1/2 Sq. Dr. Socket 15mm 6 point Length 77mm

Ko-ken 4300M-15 1/2 Sq. Dr. Socket 15mm 6 point Length 77mm

SKU: KK-4300M-15
MPN: 4300M-15

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Ko-ken 4300M-16 1/2 Sq. Dr. Socket 16mm 6 point Length 77mm

Ko-ken 4300M-16 1/2 Sq. Dr. Socket 16mm 6 point Length 77mm

SKU: KK-4300M-16
MPN: 4300M-16

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Ko-ken 4300M-16(L120) 1/2 Sq. Dr. Socket 16mm 6 point Length 120mm

Ko-ken 4300M-16(L120) 1/2 Sq. Dr. Socket 16mm 6 point Length 120mm

SKU: KK-4300M-16(L120)
MPN: 4300M-16(L120)

Save $10.47
Ko-ken 4300M-17 1/2 Sq. Dr. Socket 17mm 6 point Length 77mm

Ko-ken 4300M-17 1/2 Sq. Dr. Socket 17mm 6 point Length 77mm

SKU: KK-4300M-17
MPN: 4300M-17

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Ko-ken 4300M-17(L60) 1/2 Sq. Dr. Wheel Nut Socket 17mm 6 point Length 60mm

Ko-ken 4300M-17(L60) 1/2 Sq. Dr. Wheel Nut Socket 17mm 6 point Length 60mm

SKU: KK-4300M-17(L60)
MPN: 4300M-17(L60)

Save $3.88