KK Impact Tools

KO-KEN impact sockets

Freer Tool & Supply is your authorized distributor for the complete line of Ko-Ken impact sockets, extensions, universal joints, and accessories. Each Ko-Ken impact tool is crafted from premium chrome molybdenum steel and undergoes specialized heat treatment to withstand high-torque, heavy-duty applications without cracking or shattering. Professional mechanics, automotive technicians, and industrial maintenance teams rely on Ko-Ken impact tools for consistent performance and superior durability in demanding environments.


Ko-ken 10400A-4.1/2 3.1/2 Sq. Dr. Socket  4.1/2 6 point Length 182mm

Ko-ken 10400A-4.1/2 3.1/2 Sq. Dr. Socket 4.1/2 6 point Length 182mm

SKU: KK-10400A-4.1/2
MPN: 10400A-4.1/2

Sale price $3,456.61 List price $4,320.76
Save $864.15
Ko-ken 10400A-4.1/4 3.1/2 Sq. Dr. Socket  4.1/4 6 point Length 178mm

Ko-ken 10400A-4.1/4 3.1/2 Sq. Dr. Socket 4.1/4 6 point Length 178mm

SKU: KK-10400A-4.1/4
MPN: 10400A-4.1/4

Sale price $3,456.61 List price $4,320.76
Save $864.15
Ko-ken 10400A-4.1/8 3.1/2 Sq. Dr. Socket  4.1/8 6 point Length 176mm

Ko-ken 10400A-4.1/8 3.1/2 Sq. Dr. Socket 4.1/8 6 point Length 176mm

SKU: KK-10400A-4.1/8
MPN: 10400A-4.1/8

Sale price $3,456.61 List price $4,320.76
Save $864.15
Ko-ken 10400A-4.3/4 3.1/2 Sq. Dr. Socket  4.3/4 6 point Length 185mm

Ko-ken 10400A-4.3/4 3.1/2 Sq. Dr. Socket 4.3/4 6 point Length 185mm

SKU: KK-10400A-4.3/4
MPN: 10400A-4.3/4

Sale price $3,657.62 List price $4,572.02
Save $914.40
Ko-ken 10400A-4.3/8 3.1/2 Sq. Dr. Socket  4.3/8 6 point Length 180mm

Ko-ken 10400A-4.3/8 3.1/2 Sq. Dr. Socket 4.3/8 6 point Length 180mm

SKU: KK-10400A-4.3/8
MPN: 10400A-4.3/8

Sale price $3,456.61 List price $4,320.76
Save $864.15
Ko-ken 10400A-4.5/8 3.1/2 Sq. Dr. Socket  4.5/8 6 point Length 183mm

Ko-ken 10400A-4.5/8 3.1/2 Sq. Dr. Socket 4.5/8 6 point Length 183mm

SKU: KK-10400A-4.5/8
MPN: 10400A-4.5/8

Sale price $3,456.61 List price $4,320.76
Save $864.15
Ko-ken 10400A-4.7/8 3.1/2 Sq. Dr. Socket  4.7/8 6 point Length 190mm

Ko-ken 10400A-4.7/8 3.1/2 Sq. Dr. Socket 4.7/8 6 point Length 190mm

SKU: KK-10400A-4.7/8
MPN: 10400A-4.7/8

Sale price $3,657.62 List price $4,572.02
Save $914.40
Ko-ken 10400A-5 3.1/2 Sq. Dr. Socket  5 6 point Length 191mm

Ko-ken 10400A-5 3.1/2 Sq. Dr. Socket 5 6 point Length 191mm

SKU: KK-10400A-5
MPN: 10400A-5

Sale price $3,657.62 List price $4,572.02
Save $914.40
Ko-ken 10400A-5.1/2 3.1/2 Sq. Dr. Socket  5.1/2 6 point Length 205mm

Ko-ken 10400A-5.1/2 3.1/2 Sq. Dr. Socket 5.1/2 6 point Length 205mm

SKU: KK-10400A-5.1/2
MPN: 10400A-5.1/2

Sale price $4,377.97 List price $5,472.46
Save $1,094.49
Ko-ken 10400A-5.1/4 3.1/2 Sq. Dr. Socket  5.1/4 6 point Length 198mm

Ko-ken 10400A-5.1/4 3.1/2 Sq. Dr. Socket 5.1/4 6 point Length 198mm

SKU: KK-10400A-5.1/4
MPN: 10400A-5.1/4

Sale price $3,981.54 List price $4,976.92
Save $995.38
Ko-ken 10400A-5.1/8 3.1/2 Sq. Dr. Socket  5.1/8 6 point Length 194mm

Ko-ken 10400A-5.1/8 3.1/2 Sq. Dr. Socket 5.1/8 6 point Length 194mm

SKU: KK-10400A-5.1/8
MPN: 10400A-5.1/8

Sale price $3,981.54 List price $4,976.92
Save $995.38
Ko-ken 10400A-5.3/4 3.1/2 Sq. Dr. Socket  5.3/4 6 point Length 210mm

Ko-ken 10400A-5.3/4 3.1/2 Sq. Dr. Socket 5.3/4 6 point Length 210mm

SKU: KK-10400A-5.3/4
MPN: 10400A-5.3/4

Sale price $4,517.61 List price $5,647.01
Save $1,129.40
Ko-ken 10400A-5.3/8 3.1/2 Sq. Dr. Socket  5.3/8 6 point Length 202mm

Ko-ken 10400A-5.3/8 3.1/2 Sq. Dr. Socket 5.3/8 6 point Length 202mm

SKU: KK-10400A-5.3/8
MPN: 10400A-5.3/8

Sale price $4,249.55 List price $5,311.93
Save $1,062.38
Ko-ken 10400A-5.5/8 3.1/2 Sq. Dr. Socket  5.5/8 6 point Length 208mm

Ko-ken 10400A-5.5/8 3.1/2 Sq. Dr. Socket 5.5/8 6 point Length 208mm

SKU: KK-10400A-5.5/8
MPN: 10400A-5.5/8

Sale price $4,377.97 List price $5,472.46
Save $1,094.49
Ko-ken 10400A-5.7/8 3.1/2 Sq. Dr. Socket  5.7/8 6 point Length 212mm

Ko-ken 10400A-5.7/8 3.1/2 Sq. Dr. Socket 5.7/8 6 point Length 212mm

SKU: KK-10400A-5.7/8
MPN: 10400A-5.7/8

Sale price $4,612.50 List price $5,765.62
Save $1,153.12
Ko-ken 10400A-6 3.1/2 Sq. Dr. Socket  6 6 point Length 214mm

Ko-ken 10400A-6 3.1/2 Sq. Dr. Socket 6 6 point Length 214mm

SKU: KK-10400A-6
MPN: 10400A-6

Sale price $4,612.50 List price $5,765.62
Save $1,153.12
Ko-ken 10400A-6.1/2 3.1/2 Sq. Dr. Socket  6.1/2 6 point Length 224mm

Ko-ken 10400A-6.1/2 3.1/2 Sq. Dr. Socket 6.1/2 6 point Length 224mm

SKU: KK-10400A-6.1/2
MPN: 10400A-6.1/2

Sale price $5,282.64 List price $6,603.29
Save $1,320.65
Ko-ken 10400A-6.1/4 3.1/2 Sq. Dr. Socket  6.1/4 6 point Length 218mm

Ko-ken 10400A-6.1/4 3.1/2 Sq. Dr. Socket 6.1/4 6 point Length 218mm

SKU: KK-10400A-6.1/4
MPN: 10400A-6.1/4

Sale price $5,014.57 List price $6,268.21
Save $1,253.64
Ko-ken 10400A-6.1/8 3.1/2 Sq. Dr. Socket  6.1/8 6 point Length 216mm

Ko-ken 10400A-6.1/8 3.1/2 Sq. Dr. Socket 6.1/8 6 point Length 216mm

SKU: KK-10400A-6.1/8
MPN: 10400A-6.1/8

Sale price $5,014.57 List price $6,268.21
Save $1,253.64
Ko-ken 10400A-6.3/4 3.1/2 Sq. Dr. Socket  6.3/4 6 point Length 228mm

Ko-ken 10400A-6.3/4 3.1/2 Sq. Dr. Socket 6.3/4 6 point Length 228mm

SKU: KK-10400A-6.3/4
MPN: 10400A-6.3/4

Sale price $5,567.40 List price $6,959.25
Save $1,391.85
Ko-ken 10400A-6.3/8 3.1/2 Sq. Dr. Socket  6.3/8 6 point Length 221mm

Ko-ken 10400A-6.3/8 3.1/2 Sq. Dr. Socket 6.3/8 6 point Length 221mm

SKU: KK-10400A-6.3/8
MPN: 10400A-6.3/8

Sale price $5,014.57 List price $6,268.21
Save $1,253.64
Ko-ken 10400A-6.5/8 3.1/2 Sq. Dr. Socket  6.5/8 6 point Length 226mm

Ko-ken 10400A-6.5/8 3.1/2 Sq. Dr. Socket 6.5/8 6 point Length 226mm

SKU: KK-10400A-6.5/8
MPN: 10400A-6.5/8

Sale price $5,282.64 List price $6,603.29
Save $1,320.65
Ko-ken 10400A-6.7/8 3.1/2 Sq. Dr. Socket  6.7/8 6 point Length 230mm

Ko-ken 10400A-6.7/8 3.1/2 Sq. Dr. Socket 6.7/8 6 point Length 230mm

SKU: KK-10400A-6.7/8
MPN: 10400A-6.7/8

Sale price $5,863.37 List price $7,329.21
Save $1,465.84
Ko-ken 10400A-7 3.1/2 Sq. Dr. Socket  7 6 point Length 232mm

Ko-ken 10400A-7 3.1/2 Sq. Dr. Socket 7 6 point Length 232mm

SKU: KK-10400A-7
MPN: 10400A-7

Sale price $5,863.37 List price $7,329.21
Save $1,465.84