PRODUCTS
4863 ½” Drive Extension Bar Set (3 Pcs)
4863 Series: 3-Piece 1/2″ Drive Extension Bar Sets (4863-11 / 4863-15 / 4863-18)
- 4863 Series 3-Piece 1/2″ Drive Extension Bar Set (4863-11 / 4863-15 / 4863-18 / 凸 ½″ x 凹 ½″)
- Jeu de 3 rallonges 1/2″ série 4863 (4863-11 / 4863-15 / 4863-18 / Acier Cr-V moleté)
- 3-teiliger 1/2″ Verlängerungssatz Serie 4863 (4863-11: 50/75/150mm, 4863-15: 50/75/250mm, 4863-18: 75/125/250mm)
- Juego de 3 barras de extensión de 1/2″ serie 4863 (4863-11 / 4863-15 / 4863-18 / Acero Cr-V)
- Zestaw 3 przedłużek 1/2″ seria 4863 (4863-11 / 4863-15 / 4863-18 / Radełkowane Cr-V)
- Jogo de 3 barras de extensão de 1/2″ série 4863 (4863-11 / 4863-15 / 4863-18 / Aço Cr-V com recartilho)
- Набор удлинителей 1/2″ 3 предмета серия 4863 (4863-11 / 4863-15 / 4863-18 / Насечка Cr-V)
- طقم قضبان تمديد ٣ قطع محرك ١/٢ بوصة سلسلة 4863 (4863-11 / 4863-15 / 4863-18 / فولاذ كروم فانديوم)
- 4863シリーズ 1/2″ 差込角 エクステンションバー 3点セット (4863-11 / 4863-15 / 4863-18 / 台湾製)
- 4863 시리즈 1/2″ 드라이브 익스텐션 바 3피스 세트 (4863-11 / 4863-15 / 4863-18 / 대만산)
- Bộ thanh nối dài 3 chi tiết đầu 1/2″ dòng 4863 (4863-11 / 4863-15 / 4863-18 / Thép Cr-V có khía)
- ชุดข้อต่อยาว 3 ชิ้น ขนาด 1/2 นิ้ว ซีรีส์ 4863 (รุ่น 4863-11 / 4863-15 / 4863-18 / ผลิตในไต้หวัน)
- 4863 Serisi 3 Parça 1/2″ Uzatma Kolu Takımı (4863-11 / 4863-15 / 4863-18 / Tırtıllı Cr-V Çelik)
- 3dílná sada prodlužovacích nástavců 1/2″ série 4863 (4863-11 / 4863-15 / 4863-18 / Rýhované)
- 4863系列 三件式 1/2″ 接桿工具組 (4863-11短中長組合 / 4863-15短中特長組合 / 4863-18中長特長組合 / 凸½″x凹½″ / 100%台灣製造)
4863 1/2″ Drive Extension Bar Set Series is engineered from the proven 4800 industrial extension bar platform. In automotive engine compartments, commercial truck frames, and heavy machinery assemblies, 1/2″ drive sockets frequently need to reach past brackets, manifolds, and hydraulic pipes. Stacking mismatched adapters introduces dangerous torsional flex and increases socket drop risks.
| 3PCS | 3863-11 |
|---|---|
| 3800 | 1-⅝"(40mm) 3"(75mm) 6"(150mm) |
BLISTER CARD : 15.5KGS/ 72SETS  = 1.42' |
|
Feature
What is the difference between the 4863-11, 4863-15, and 4863-18 sets?
The three sets differ in their component lengths and working applications:
- 4863-11 includes 50mm (2″), 75mm (3″), and 150mm (6″) bars (totaling 11 inches), designed for tight automotive engine compartments and brake calipers.
- 4863-15 includes 50mm (2″), 75mm (3″), and 250mm (10″) bars (totaling 15 inches), balancing compact clearance with deep reach.
- 4863-18 includes 75mm (3″), 125mm (5″), and 250mm (10″) bars (totaling 18 inches), designed for heavy-duty commercial truck chassis and transmission bell-housings.
What is the torque rating of these 1/2″ drive extension bars?
All bars in the 4863 series are based on the HANS 4800 industrial line, drop-forged from high-grade Chrome Vanadium steel. They are rated for a proof torque exceeding 512 Nm (375 ft-lb), easily exceeding international DIN 3123 and ISO 3316 specifications.
Can these extension bars be linked together?
Yes. Each extension bar features precision-machined 凸 ½″ male anvils with spring-loaded ball detents and 凹 ½″ female receivers with four internal detent grooves. They can be coupled together in series (e.g., 125 mm + 250 mm = 375 mm
) to navigate around engine obstructions.
What is the function of the knurling on the shaft?
The raised diamond cross-hatch knurling provides a tactile, non-slip gripping surface. It allows mechanics to quickly spin free-running bolts in or out using fingertips without swinging the ratchet handle.
