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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 3445M-13 3/8 Sq. Dr. Universal Socket 13mm 12 point Length 51mm

Ko-ken 3445M-13 3/8 Sq. Dr. Universal Socket 13mm 12 point Length 51mm

SKU: KK-3445M-13
MPN: 3445M-13

Save $6.63
Ko-ken 3445M-14 3/8 Sq. Dr. Universal Socket 14mm 12 point Length 51mm

Ko-ken 3445M-14 3/8 Sq. Dr. Universal Socket 14mm 12 point Length 51mm

SKU: KK-3445M-14
MPN: 3445M-14

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Ko-ken 3445M-15 3/8 Sq. Dr. Universal Socket 15mm 12 point Length 53.5mm

Ko-ken 3445M-15 3/8 Sq. Dr. Universal Socket 15mm 12 point Length 53.5mm

SKU: KK-3445M-15
MPN: 3445M-15

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Ko-ken 3445M-16 3/8 Sq. Dr. Universal Socket 16mm 12 point Length 53.5mm

Ko-ken 3445M-16 3/8 Sq. Dr. Universal Socket 16mm 12 point Length 53.5mm

SKU: KK-3445M-16
MPN: 3445M-16

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Ko-ken 3445M-17 3/8 Sq. Dr. Universal Socket 17mm 12 point Length 54.5mm

Ko-ken 3445M-17 3/8 Sq. Dr. Universal Socket 17mm 12 point Length 54.5mm

SKU: KK-3445M-17
MPN: 3445M-17

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Ko-ken 3445M-18 3/8 Sq. Dr. Universal Socket 18mm 12 point Length 54.5mm

Ko-ken 3445M-18 3/8 Sq. Dr. Universal Socket 18mm 12 point Length 54.5mm

SKU: KK-3445M-18
MPN: 3445M-18

Save $6.96
Ko-ken 3445M-19 3/8 Sq. Dr. Universal Socket 19mm 12 point Length 56.5mm

Ko-ken 3445M-19 3/8 Sq. Dr. Universal Socket 19mm 12 point Length 56.5mm

SKU: KK-3445M-19
MPN: 3445M-19

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Ko-ken 3445M-21 3/8 Sq. Dr. Universal Socket 21mm 12 point Length 56.5mm

Ko-ken 3445M-21 3/8 Sq. Dr. Universal Socket 21mm 12 point Length 56.5mm

SKU: KK-3445M-21
MPN: 3445M-21

Save $8.05
Ko-ken 3445M-8 3/8 Sq. Dr. Universal Socket 8mm 12 point Length 47mm

Ko-ken 3445M-8 3/8 Sq. Dr. Universal Socket 8mm 12 point Length 47mm

SKU: KK-3445M-8
MPN: 3445M-8

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Ko-ken 3445M-9 3/8 Sq. Dr. Universal Socket 9mm 12 point Length 47.5mm

Ko-ken 3445M-9 3/8 Sq. Dr. Universal Socket 9mm 12 point Length 47.5mm

SKU: KK-3445M-9
MPN: 3445M-9

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Ko-ken 3445W-1/2 3/8 Sq. Dr. Universal Socket Whitworth 1/2 12 point Length 58.5mm

Ko-ken 3445W-1/2 3/8 Sq. Dr. Universal Socket Whitworth 1/2 12 point Length 58.5mm

SKU: KK-3445W-1/2
MPN: 3445W-1/2

Save $11.43
Ko-ken 3445W-1/4 3/8 Sq. Dr. Universal Socket Whitworth 1/4 12 point Length 51mm

Ko-ken 3445W-1/4 3/8 Sq. Dr. Universal Socket Whitworth 1/4 12 point Length 51mm

SKU: KK-3445W-1/4
MPN: 3445W-1/4

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Ko-ken 3445W-1/8 3/8 Sq. Dr. Universal Socket Whitworth 1/8 12 point Length 47.5mm

Ko-ken 3445W-1/8 3/8 Sq. Dr. Universal Socket Whitworth 1/8 12 point Length 47.5mm

SKU: KK-3445W-1/8
MPN: 3445W-1/8

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Ko-ken 3445W-3/16 3/8 Sq. Dr. Universal Socket Whitworth 3/16 12 point Length 49.5mm

Ko-ken 3445W-3/16 3/8 Sq. Dr. Universal Socket Whitworth 3/16 12 point Length 49.5mm

SKU: KK-3445W-3/16
MPN: 3445W-3/16

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Ko-ken 3445W-3/8 3/8 Sq. Dr. Universal Socket Whitworth 3/8 12 point Length 54.5mm

Ko-ken 3445W-3/8 3/8 Sq. Dr. Universal Socket Whitworth 3/8 12 point Length 54.5mm

SKU: KK-3445W-3/8
MPN: 3445W-3/8

Save $9.04
Ko-ken 3445W-5/16 3/8 Sq. Dr. Universal Socket Whitworth 5/16 12 point Length 53.5mm

Ko-ken 3445W-5/16 3/8 Sq. Dr. Universal Socket Whitworth 5/16 12 point Length 53.5mm

SKU: KK-3445W-5/16
MPN: 3445W-5/16

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Ko-ken 3445W-7/16 3/8 Sq. Dr. Universal Socket Whitworth 7/16 12 point Length 57.5mm

Ko-ken 3445W-7/16 3/8 Sq. Dr. Universal Socket Whitworth 7/16 12 point Length 57.5mm

SKU: KK-3445W-7/16
MPN: 3445W-7/16

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Ko-ken 3715S T Handle 3/8 Square Length 268 x 190mm Short

Ko-ken 3715S T Handle 3/8 Square Length 268 x 190mm Short

SKU: KK-3715S
MPN: 3715S

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Ko-ken 3715SL T Handle 3/8 Square Length 237 x 200mm Sliding Bar

Ko-ken 3715SL T Handle 3/8 Square Length 237 x 200mm Sliding Bar

SKU: KK-3715SL
MPN: 3715SL

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Ko-ken 3749N 3/8 Sq. Dr. Ratchet Handle 24 teeth Length 200mm Metal Handle

Ko-ken 3749N 3/8 Sq. Dr. Ratchet Handle 24 teeth Length 200mm Metal Handle

SKU: KK-3749N
MPN: 3749N

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Ko-ken 3749S 3/8 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm

Ko-ken 3749S 3/8 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm

SKU: KK-3749S
MPN: 3749S

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Ko-ken 3749S-1/2 1/2 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm

Ko-ken 3749S-1/2 1/2 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm

SKU: KK-3749S-1/2
MPN: 3749S-1/2

Save $12.06
Ko-ken 3749SB 3/8 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm Push Button

Ko-ken 3749SB 3/8 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm Push Button

SKU: KK-3749SB
MPN: 3749SB

Save $13.32
Ko-ken 3749SB-1/2 1/2 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm Push Button

Ko-ken 3749SB-1/2 1/2 Sq. Dr. Ratchet Handle 24 teeth Short Length 110mm Push Button

SKU: KK-3749SB-1/2
MPN: 3749SB-1/2

Save $14.16