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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 2415A-1/4 1/4 Sq. Dr. Socket 1/4 Double Square Length 22mm

Ko-ken 2415A-1/4 1/4 Sq. Dr. Socket 1/4 Double Square Length 22mm

SKU: KK-2415A-1/4
MPN: 2415A-1/4

Save $1.48
Ko-ken 2415A-3/8 1/4 Sq. Dr. Socket 3/8 Double Square Length 22mm

Ko-ken 2415A-3/8 1/4 Sq. Dr. Socket 3/8 Double Square Length 22mm

SKU: KK-2415A-3/8
MPN: 2415A-3/8

Save $1.73
Ko-ken 2415A-5/16 1/4 Sq. Dr. Socket 5/16 Double Square Length 22mm

Ko-ken 2415A-5/16 1/4 Sq. Dr. Socket 5/16 Double Square Length 22mm

SKU: KK-2415A-5/16
MPN: 2415A-5/16

Save $1.68
Ko-ken 2415M-10 1/4 Sq. Dr. Socket 10mm Double Square Length 22mm

Ko-ken 2415M-10 1/4 Sq. Dr. Socket 10mm Double Square Length 22mm

SKU: KK-2415M-10
MPN: 2415M-10

Save $1.58
Ko-ken 2415M-5.5 1/4 Sq. Dr. Socket 5.5mm Double Square Length 22mm

Ko-ken 2415M-5.5 1/4 Sq. Dr. Socket 5.5mm Double Square Length 22mm

SKU: KK-2415M-5.5
MPN: 2415M-5.5

Save $1.34
Ko-ken 2415M-6 1/4 Sq. Dr. Socket 6mm Double Square Length 22mm

Ko-ken 2415M-6 1/4 Sq. Dr. Socket 6mm Double Square Length 22mm

SKU: KK-2415M-6
MPN: 2415M-6

Save $1.34
Ko-ken 2415M-7 1/4 Sq. Dr. Socket 7mm Double Square Length 22mm

Ko-ken 2415M-7 1/4 Sq. Dr. Socket 7mm Double Square Length 22mm

SKU: KK-2415M-7
MPN: 2415M-7

Save $1.52
Ko-ken 2415M-8 1/4 Sq. Dr. Socket 8mm Double Square Length 22mm

Ko-ken 2415M-8 1/4 Sq. Dr. Socket 8mm Double Square Length 22mm

SKU: KK-2415M-8
MPN: 2415M-8

Save $1.52
Ko-ken 3415A-1/2 3/8 Sq. Dr. Socket 1/2 Double Square Length 27mm

Ko-ken 3415A-1/2 3/8 Sq. Dr. Socket 1/2 Double Square Length 27mm

SKU: KK-3415A-1/2
MPN: 3415A-1/2

Save $2.27
Ko-ken 3415A-1/4 3/8 Sq. Dr. Socket 1/4 Double Square Length 26mm

Ko-ken 3415A-1/4 3/8 Sq. Dr. Socket 1/4 Double Square Length 26mm

SKU: KK-3415A-1/4
MPN: 3415A-1/4

Save $1.87
Ko-ken 3415A-11/32 3/8 Sq. Dr. Socket 11/32 Double Square Length 26mm

Ko-ken 3415A-11/32 3/8 Sq. Dr. Socket 11/32 Double Square Length 26mm

SKU: KK-3415A-11/32
MPN: 3415A-11/32

Save $2.14
Ko-ken 3415A-3/8 3/8 Sq. Dr. Socket 3/8 Double Square Length 26mm

Ko-ken 3415A-3/8 3/8 Sq. Dr. Socket 3/8 Double Square Length 26mm

SKU: KK-3415A-3/8
MPN: 3415A-3/8

Save $2.14
Ko-ken 3415A-5/16 3/8 Sq. Dr. Socket 5/16 Double Square Length 26mm

Ko-ken 3415A-5/16 3/8 Sq. Dr. Socket 5/16 Double Square Length 26mm

SKU: KK-3415A-5/16
MPN: 3415A-5/16

Save $1.87
Ko-ken 3415A-7/16 3/8 Sq. Dr. Socket 7/16 Double Square Length 27mm

Ko-ken 3415A-7/16 3/8 Sq. Dr. Socket 7/16 Double Square Length 27mm

SKU: KK-3415A-7/16
MPN: 3415A-7/16

Save $2.14
Ko-ken 3415M-10 3/8 Sq. Dr. Socket 10mm Double Square Length 26mm

Ko-ken 3415M-10 3/8 Sq. Dr. Socket 10mm Double Square Length 26mm

SKU: KK-3415M-10
MPN: 3415M-10

Save $1.94
Ko-ken 3415M-12 3/8 Sq. Dr. Socket 12mm Double Square Length 27mm

Ko-ken 3415M-12 3/8 Sq. Dr. Socket 12mm Double Square Length 27mm

SKU: KK-3415M-12
MPN: 3415M-12

Save $2.03
Ko-ken 3415M-13 3/8 Sq. Dr. Socket 13mm Double Square Length 27mm

Ko-ken 3415M-13 3/8 Sq. Dr. Socket 13mm Double Square Length 27mm

SKU: KK-3415M-13
MPN: 3415M-13

Save $3.43
Ko-ken 3415M-5.5 3/8 Sq. Dr. Socket 5.5mm Double Square Length 26mm

Ko-ken 3415M-5.5 3/8 Sq. Dr. Socket 5.5mm Double Square Length 26mm

SKU: KK-3415M-5.5
MPN: 3415M-5.5

Save $2.34
Ko-ken 3415M-6 3/8 Sq. Dr. Socket 6mm Double Square Length 26mm

Ko-ken 3415M-6 3/8 Sq. Dr. Socket 6mm Double Square Length 26mm

SKU: KK-3415M-6
MPN: 3415M-6

Save $1.69
Ko-ken 3415M-7 3/8 Sq. Dr. Socket 7mm Double Square Length 26mm

Ko-ken 3415M-7 3/8 Sq. Dr. Socket 7mm Double Square Length 26mm

SKU: KK-3415M-7
MPN: 3415M-7

Save $1.69
Ko-ken 3415M-8 3/8 Sq. Dr. Socket 8mm Double Square Length 26mm

Ko-ken 3415M-8 3/8 Sq. Dr. Socket 8mm Double Square Length 26mm

SKU: KK-3415M-8
MPN: 3415M-8

Save $1.69