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 4010M.100-17 1/2 Sq. Dr. Bit Socket  17mm Hex Length 100mm

Ko-ken 4010M.100-17 1/2 Sq. Dr. Bit Socket 17mm Hex Length 100mm

SKU: KK-4010M.100-17
MPN: 4010M.100-17

Sale price $14.40 List price $17.99
Save $3.59
Ko-ken 4010M.100-18 1/2 Sq. Dr. Bit Socket  18mm Hex Length 100mm

Ko-ken 4010M.100-18 1/2 Sq. Dr. Bit Socket 18mm Hex Length 100mm

SKU: KK-4010M.100-18
MPN: 4010M.100-18

Sale price $16.78 List price $20.97
Save $4.19
Ko-ken 4010M.100-19 1/2 Sq. Dr. Bit Socket  19mm Hex Length 100mm

Ko-ken 4010M.100-19 1/2 Sq. Dr. Bit Socket 19mm Hex Length 100mm

SKU: KK-4010M.100-19
MPN: 4010M.100-19

Sale price $16.78 List price $20.97
Save $4.19
Ko-ken 4010M.100-4 1/2 Sq. Dr. Bit Socket  4mm Hex Length 100mm

Ko-ken 4010M.100-4 1/2 Sq. Dr. Bit Socket 4mm Hex Length 100mm

SKU: KK-4010M.100-4
MPN: 4010M.100-4

Sale price $10.05 List price $12.56
Save $2.51
Ko-ken 4010M.100-5 1/2 Sq. Dr. Bit Socket  5mm Hex Length 100mm

Ko-ken 4010M.100-5 1/2 Sq. Dr. Bit Socket 5mm Hex Length 100mm

SKU: KK-4010M.100-5
MPN: 4010M.100-5

Sale price $10.05 List price $12.56
Save $2.51
Ko-ken 4010M.100-6 1/2 Sq. Dr. Bit Socket  6mm Hex Length 100mm

Ko-ken 4010M.100-6 1/2 Sq. Dr. Bit Socket 6mm Hex Length 100mm

SKU: KK-4010M.100-6
MPN: 4010M.100-6

Sale price $10.05 List price $12.56
Save $2.51
Ko-ken 4010M.100-7 1/2 Sq. Dr. Bit Socket  7mm Hex Length 100mm

Ko-ken 4010M.100-7 1/2 Sq. Dr. Bit Socket 7mm Hex Length 100mm

SKU: KK-4010M.100-7
MPN: 4010M.100-7

Sale price $10.28 List price $12.84
Save $2.56
Ko-ken 4010M.100-8 1/2 Sq. Dr. Bit Socket  8mm Hex Length 100mm

Ko-ken 4010M.100-8 1/2 Sq. Dr. Bit Socket 8mm Hex Length 100mm

SKU: KK-4010M.100-8
MPN: 4010M.100-8

Sale price $10.28 List price $12.84
Save $2.56
Ko-ken 4010M.100-8(12P) 1/2 Sq. Dr. Bit Socket  8mm Double-Hex Length 100mm For Cylinder head bolt

Ko-ken 4010M.100-8(12P) 1/2 Sq. Dr. Bit Socket 8mm Double-Hex Length 100mm For Cylinder head bolt

SKU: KK-4010M.100-8(12P)
MPN: 4010M.100-8(12P)

Sale price $14.62 List price $18.27
Save $3.65
Ko-ken 4010M.100-9 1/2 Sq. Dr. Bit Socket  9mm Hex Length 100mm

Ko-ken 4010M.100-9 1/2 Sq. Dr. Bit Socket 9mm Hex Length 100mm

SKU: KK-4010M.100-9
MPN: 4010M.100-9

Sale price $10.80 List price $13.50
Save $2.70
Ko-ken 4010M.120-10(12P) 1/2 Sq. Dr. Bit Socket  10mm Double-Hex Length 120mm For Cylinder head bolt

Ko-ken 4010M.120-10(12P) 1/2 Sq. Dr. Bit Socket 10mm Double-Hex Length 120mm For Cylinder head bolt

SKU: KK-4010M.120-10(12P)
MPN: 4010M.120-10(12P)

Sale price $15.26 List price $19.07
Save $3.81
Ko-ken 4010M.160-10 1/2 Sq. Dr. Bit Socket  10mm Hex Length 160mm

Ko-ken 4010M.160-10 1/2 Sq. Dr. Bit Socket 10mm Hex Length 160mm

SKU: KK-4010M.160-10
MPN: 4010M.160-10

Sale price $13.33 List price $16.66
Save $3.33
Ko-ken 4010M.160-12 1/2 Sq. Dr. Bit Socket  12mm Hex Length 160mm

Ko-ken 4010M.160-12 1/2 Sq. Dr. Bit Socket 12mm Hex Length 160mm

SKU: KK-4010M.160-12
MPN: 4010M.160-12

Sale price $14.28 List price $17.84
Save $3.56
Ko-ken 4010M.160-14 1/2 Sq. Dr. Bit Socket  14mm Hex Length 160mm

Ko-ken 4010M.160-14 1/2 Sq. Dr. Bit Socket 14mm Hex Length 160mm

SKU: KK-4010M.160-14
MPN: 4010M.160-14

Sale price $15.95 List price $19.93
Save $3.98
Ko-ken 4010M.160-17 1/2 Sq. Dr. Bit Socket  17mm Hex Length 160mm

Ko-ken 4010M.160-17 1/2 Sq. Dr. Bit Socket 17mm Hex Length 160mm

SKU: KK-4010M.160-17
MPN: 4010M.160-17

Sale price $18.78 List price $23.47
Save $4.69
Ko-ken 4010M.160-19 1/2 Sq. Dr. Bit Socket  19mm Hex Length 160mm

Ko-ken 4010M.160-19 1/2 Sq. Dr. Bit Socket 19mm Hex Length 160mm

SKU: KK-4010M.160-19
MPN: 4010M.160-19

Sale price $20.26 List price $25.32
Save $5.06
Ko-ken 4010M.160-4 1/2 Sq. Dr. Bit Socket  4mm Hex Length 160mm

Ko-ken 4010M.160-4 1/2 Sq. Dr. Bit Socket 4mm Hex Length 160mm

SKU: KK-4010M.160-4
MPN: 4010M.160-4

Sale price $12.06 List price $15.07
Save $3.01
Ko-ken 4010M.160-5 1/2 Sq. Dr. Bit Socket  5mm Hex Length 160mm

Ko-ken 4010M.160-5 1/2 Sq. Dr. Bit Socket 5mm Hex Length 160mm

SKU: KK-4010M.160-5
MPN: 4010M.160-5

Sale price $12.06 List price $15.07
Save $3.01
Ko-ken 4010M.160-6 1/2 Sq. Dr. Bit Socket  6mm Hex Length 160mm

Ko-ken 4010M.160-6 1/2 Sq. Dr. Bit Socket 6mm Hex Length 160mm

SKU: KK-4010M.160-6
MPN: 4010M.160-6

Sale price $12.06 List price $15.07
Save $3.01
Ko-ken 4010M.160-7 1/2 Sq. Dr. Bit Socket  7mm Hex Length 160mm

Ko-ken 4010M.160-7 1/2 Sq. Dr. Bit Socket 7mm Hex Length 160mm

SKU: KK-4010M.160-7
MPN: 4010M.160-7

Sale price $12.32 List price $15.39
Save $3.07
Ko-ken 4010M.160-8 1/2 Sq. Dr. Bit Socket  8mm Hex Length 160mm

Ko-ken 4010M.160-8 1/2 Sq. Dr. Bit Socket 8mm Hex Length 160mm

SKU: KK-4010M.160-8
MPN: 4010M.160-8

Sale price $12.32 List price $15.39
Save $3.07
Ko-ken 4010M.50-10 1/2 Sq. Dr. Bit Socket  10mm Hex Length 50mm

Ko-ken 4010M.50-10 1/2 Sq. Dr. Bit Socket 10mm Hex Length 50mm

SKU: KK-4010M.50-10
MPN: 4010M.50-10

Sale price $9.40 List price $11.75
Save $2.35
Ko-ken 4010M.50-12 1/2 Sq. Dr. Bit Socket  12mm Hex Length 50mm

Ko-ken 4010M.50-12 1/2 Sq. Dr. Bit Socket 12mm Hex Length 50mm

SKU: KK-4010M.50-12
MPN: 4010M.50-12

Sale price $10.31 List price $12.88
Save $2.57
Ko-ken 4010M.50-13 1/2 Sq. Dr. Bit Socket  13mm Hex Length 50mm

Ko-ken 4010M.50-13 1/2 Sq. Dr. Bit Socket 13mm Hex Length 50mm

SKU: KK-4010M.50-13
MPN: 4010M.50-13

Sale price $11.12 List price $13.89
Save $2.77