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KK Hand Tools

Freer Tool & Supply is your trusted, ISO-certified source for Ko-Ken hand tools—delivering the complete lineup of sockets, ratchets, breaker bars, extension bars, and specialty tools engineered for professional results. Every Ko-Ken hand tool is crafted from high-grade chrome vanadium steel and undergoes precision heat treatment, ensuring exceptional durability and long-term performance in demanding industrial and automotive environments.


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 4400W-1/4 1/2 Sq. Dr. Socket Whitworth 1/4 6 point Length 37mm

Ko-ken 4400W-1/4 1/2 Sq. Dr. Socket Whitworth 1/4 6 point Length 37mm

SKU: KK-4400W-1/4
MPN: 4400W-1/4

Save $1.81
Ko-ken 4400W-11/16 1/2 Sq. Dr. Socket Whitworth 11/16 6 point Length 46mm

Ko-ken 4400W-11/16 1/2 Sq. Dr. Socket Whitworth 11/16 6 point Length 46mm

SKU: KK-4400W-11/16
MPN: 4400W-11/16

Save $4.55
Ko-ken 4400W-3/16 1/2 Sq. Dr. Socket Whitworth 3/16 6 point Length 37mm

Ko-ken 4400W-3/16 1/2 Sq. Dr. Socket Whitworth 3/16 6 point Length 37mm

SKU: KK-4400W-3/16
MPN: 4400W-3/16

Save $1.81
Ko-ken 4400W-3/4 1/2 Sq. Dr. Socket Whitworth 3/4 6 point Length 47mm

Ko-ken 4400W-3/4 1/2 Sq. Dr. Socket Whitworth 3/4 6 point Length 47mm

SKU: KK-4400W-3/4
MPN: 4400W-3/4

Save $6.68
Ko-ken 4400W-3/8 1/2 Sq. Dr. Socket Whitworth 3/8 6 point Length 37mm

Ko-ken 4400W-3/8 1/2 Sq. Dr. Socket Whitworth 3/8 6 point Length 37mm

SKU: KK-4400W-3/8
MPN: 4400W-3/8

Save $2.05
Ko-ken 4400W-5/16 1/2 Sq. Dr. Socket Whitworth 5/16 6 point Length 37mm

Ko-ken 4400W-5/16 1/2 Sq. Dr. Socket Whitworth 5/16 6 point Length 37mm

SKU: KK-4400W-5/16
MPN: 4400W-5/16

Save $1.90
Ko-ken 4400W-5/8 1/2 Sq. Dr. Socket Whitworth 5/8 6 point Length 43mm

Ko-ken 4400W-5/8 1/2 Sq. Dr. Socket Whitworth 5/8 6 point Length 43mm

SKU: KK-4400W-5/8
MPN: 4400W-5/8

Save $3.98
Ko-ken 4400W-7/16 1/2 Sq. Dr. Socket Whitworth 7/16 6 point Length 38mm

Ko-ken 4400W-7/16 1/2 Sq. Dr. Socket Whitworth 7/16 6 point Length 38mm

SKU: KK-4400W-7/16
MPN: 4400W-7/16

Save $2.46
Ko-ken 4400W-9/16 1/2 Sq. Dr. Socket Whitworth 9/16 6 point Length 42mm

Ko-ken 4400W-9/16 1/2 Sq. Dr. Socket Whitworth 9/16 6 point Length 42mm

SKU: KK-4400W-9/16
MPN: 4400W-9/16

Save $3.46
Ko-ken 4440A-1/2 1/2 Sq. Dr. Universal Socket 1/2 6 point Length 66mm

Ko-ken 4440A-1/2 1/2 Sq. Dr. Universal Socket 1/2 6 point Length 66mm

SKU: KK-4440A-1/2
MPN: 4440A-1/2

Save $9.25
Ko-ken 4440A-11/16 1/2 Sq. Dr. Universal Socket 11/16 6 point Length 69mm

Ko-ken 4440A-11/16 1/2 Sq. Dr. Universal Socket 11/16 6 point Length 69mm

SKU: KK-4440A-11/16
MPN: 4440A-11/16

Save $9.53
Ko-ken 4440A-3/4 1/2 Sq. Dr. Universal Socket 3/4 6 point Length 71mm

Ko-ken 4440A-3/4 1/2 Sq. Dr. Universal Socket 3/4 6 point Length 71mm

SKU: KK-4440A-3/4
MPN: 4440A-3/4

Save $9.53
Ko-ken 4440A-3/8 1/2 Sq. Dr. Universal Socket 3/8 6 point Length 63mm

Ko-ken 4440A-3/8 1/2 Sq. Dr. Universal Socket 3/8 6 point Length 63mm

SKU: KK-4440A-3/8
MPN: 4440A-3/8

Save $8.95
Ko-ken 4440A-5/8 1/2 Sq. Dr. Universal Socket 5/8 6 point Length 68mm

Ko-ken 4440A-5/8 1/2 Sq. Dr. Universal Socket 5/8 6 point Length 68mm

SKU: KK-4440A-5/8
MPN: 4440A-5/8

Save $9.25
Ko-ken 4440A-7/16 1/2 Sq. Dr. Universal Socket 7/16 6 point Length 65mm

Ko-ken 4440A-7/16 1/2 Sq. Dr. Universal Socket 7/16 6 point Length 65mm

SKU: KK-4440A-7/16
MPN: 4440A-7/16

Save $8.95
Ko-ken 4440A-7/8 1/2 Sq. Dr. Universal Socket 7/8 6 point Length 72mm

Ko-ken 4440A-7/8 1/2 Sq. Dr. Universal Socket 7/8 6 point Length 72mm

SKU: KK-4440A-7/8
MPN: 4440A-7/8

Save $9.84
Ko-ken 4440A-9/16 1/2 Sq. Dr. Universal Socket 9/16 6 point Length 66mm

Ko-ken 4440A-9/16 1/2 Sq. Dr. Universal Socket 9/16 6 point Length 66mm

SKU: KK-4440A-9/16
MPN: 4440A-9/16

Save $9.25
Ko-ken 4440M-10 1/2 Sq. Dr. Universal Socket 10mm 6 point Length 63mm

Ko-ken 4440M-10 1/2 Sq. Dr. Universal Socket 10mm 6 point Length 63mm

SKU: KK-4440M-10
MPN: 4440M-10

Save $8.13
Ko-ken 4440M-11 1/2 Sq. Dr. Universal Socket 11mm 6 point Length 65mm

Ko-ken 4440M-11 1/2 Sq. Dr. Universal Socket 11mm 6 point Length 65mm

SKU: KK-4440M-11
MPN: 4440M-11

Save $8.13
Ko-ken 4440M-12 1/2 Sq. Dr. Universal Socket 12mm 6 point Length 65mm

Ko-ken 4440M-12 1/2 Sq. Dr. Universal Socket 12mm 6 point Length 65mm

SKU: KK-4440M-12
MPN: 4440M-12

Save $8.13
Ko-ken 4440M-13 1/2 Sq. Dr. Universal Socket 13mm 6 point Length 66mm

Ko-ken 4440M-13 1/2 Sq. Dr. Universal Socket 13mm 6 point Length 66mm

SKU: KK-4440M-13
MPN: 4440M-13

Save $8.41
Ko-ken 4440M-14 1/2 Sq. Dr. Universal Socket 14mm 6 point Length 66mm

Ko-ken 4440M-14 1/2 Sq. Dr. Universal Socket 14mm 6 point Length 66mm

SKU: KK-4440M-14
MPN: 4440M-14

Save $8.41
Ko-ken 4440M-15 1/2 Sq. Dr. Universal Socket 15mm 6 point Length 68mm

Ko-ken 4440M-15 1/2 Sq. Dr. Universal Socket 15mm 6 point Length 68mm

SKU: KK-4440M-15
MPN: 4440M-15

Save $8.41
Ko-ken 4440M-16 1/2 Sq. Dr. Universal Socket 16mm 6 point Length 68mm

Ko-ken 4440M-16 1/2 Sq. Dr. Universal Socket 16mm 6 point Length 68mm

SKU: KK-4440M-16
MPN: 4440M-16

Save $8.41