Six serrations (unevenness) are provided on the outer circumference of the insertion part, and knurling is applied. It is a two-stage utilization type that can be fixed straight by swinging 15 degrees and inserting the socket all the way.
Six serrations (unevenness) are provided on the outer circumference of the insertion part, and knurling is applied. It is a two-stage utilization type that can be fixed straight by swinging 15 degrees and inserting the socket all the way.
in 16 offers
The lowest price for Ko-Ken 1/2" Drive Wobble Fix Extension Set right now is $104.95 at housetradesupplies, compared across 11 retailers.
The all-time low was $39.00 on 25 Oct 2026 — today's price is 169% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 1 Nov 2026.
Ko-Ken 1/2" Drive Wobble Fix Extension Set
Six serrations (unevenness) are provided on the outer circumference of the insertion part, and knurling is applied. It is a two-stage utilization type that can be fixed straight by swinging 15 degrees and inserting the socket all the way.
Six serrations (unevenness) are provided on the outer circumference of the insertion part, and knurling is applied. It is a two-stage utilization type that can be fixed straight by swinging 15 degrees and inserting the socket all the way.
Last updated at 01/11/2026 21:16:55
Yamashita Industrial Research Laboratory Koken PK4763/5 1/2 (12.7 mm) SQ Offset Extension Bar Set, 5 Pieces
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Koken 5PC 1/2"Dr 50-250MM Wobble Extension Set KOPK4763/5
Delivery between 4–10 Nov $12.90
Koken 5 Piece 1/2" Drive Ko-ken Wobble Fix Extension Set 50-250mm -
Delivery $15
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Koken PK4763/5 5 Piece 1/2" Square Drive Wobble Fix Extension Set 50-250mm - Made in Japan
Delivery between 3–12 Nov $17.95
Koken PK4763/5 1/2 Inch Wobble Fix Extension Bar Set of 5 Pcs Made in Japan NEW
14-day returns
KOKEN 1/2" spherical head extension bar set (5 pcs.)
Delivery $76
Koken - Extension Set "wobble" 1/2 Dr 5pcs 50-250mm | KOPK4763/5
Delivery between 2–10 Nov $7.95
Ko-Ken 5 Piece 1/2" Drive Wobble Fix Extension Bar Set - KOPK4763/5
Free delivery
Ko-Ken KOPK4763/5 5pce 1/2" Drive 50mm-250mm Wobble Fix Extension Bar
Free delivery
Extension Set WOBBLE 1/2 Dr 5pcs 50-250mm
Delivery between 6–13 Nov $7.60
| Dimensions | 50-250mm |
| Weight | 2 kg |
| Construction Material | Steel |
| Design Highlights | Wobble-Fix (permits movement of up to a 15 degree angle), Wobble-Fix (holds the socket securely and steadily on the extension bar permitting no movement) |
| Storage | ABS Tray, Plastic Tray |
Yamashita Industrial Research Laboratory Koken PK4763/5 1/2 (12.7 mm) SQ Offset Extension Bar Set, 5 Pieces
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Koken 5PC 1/2"Dr 50-250MM Wobble Extension Set KOPK4763/5
Delivery between 4–10 Nov $12.90
Koken 5 Piece 1/2" Drive Ko-ken Wobble Fix Extension Set 50-250mm -
Delivery $15
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Koken PK4763/5 5 Piece 1/2" Square Drive Wobble Fix Extension Set 50-250mm - Made in Japan
Delivery between 3–12 Nov $17.95
Koken PK4763/5 1/2 Inch Wobble Fix Extension Bar Set of 5 Pcs Made in Japan NEW
14-day returns
| Dimensions | 50-250mm |
| Weight | 2 kg |
| Construction Material | Steel |
| Design Highlights | Wobble-Fix (permits movement of up to a 15 degree angle), Wobble-Fix (holds the socket securely and steadily on the extension bar permitting no movement) |
| Storage | ABS Tray, Plastic Tray |
