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6190-3 / 8190-3 Torque Multiplier Set | Lever Arm, 1:3
Torque Multiplier Tool Set with Lever Arm (3PCs) – 6190-3 / 8190-3 (1:3 Ratio)
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6190-3 / 8190-3 torque multiplier set with lever arm is built for high-torque loosening/tightening where standard wrenches are inefficient or unsafe. The lever arm stabilizes reaction force while the 1:3 torque ratio multiplies input torque for heavy-duty truck, machinery, and industrial fasteners.
| W mm | H mm | L mm | INPUT TORQUE N · m | OUTPUT TORQUE N · m |  g |
|---|---|---|---|---|---|
| 70 | 78 | 428 | MAX : 303 | MAX : 1000 | 2250  |
| 82 | 97 | 480 | MAX : 231 | MAX : 1500 | 4200 |
| 96 | 111 | 500 | MAX : 758 | MAX : 2500 | 5660 |
| 82 | 110 | 480 | MAX : 222 | MAX : 2000 | 4500 |
| 96 | 134 | 500 | MAX : 208 | MAX : 2500 | 5850 |
| 73 | 84 | 425 | MAX : 500 | MAX : 1500 | 2350 |
| 91 | 113.5 | 500 | MAX : 1000 | MAX : 3000 | 4850 |
Feature
- Torque multiplier + lever arm for controlled high-torque output
- 1:3 gear ratio / torque ratio (simple, predictable multiplication)
- Two drive configurations:
- 6190-3: ½” input → ¾” output
- 8190-3: ¾” input → 1″ output
- Designed for heavy fasteners where leverage and reaction control matter (fleet, plant maintenance, service teams)
- Truck wheel hubs and high-torque chassis fasteners
- Industrial maintenance bolts where access is limited
- Any job requiring controlled torque multiplication and reaction stability
Workshop SOP (How to Use)
- Select model by required output drive (¾” or 1″)
- Seat the output socket fully on the fastener
- Position the lever arm against a solid reaction point (no slipping)
- Apply input torque smoothly (do not exceed max input spec)
- Stop at target torque; reset/inspect reaction point before the next cycle
FAQ
Q1: What is the torque multiplication ratio?
Both 6190-3 and 8190-3 are 1:3.
Q2: What’s the difference between 6190-3 and 8190-3?
6190-3 is ½” input → ¾” output (max 1500 N·m output). 8190-3 is ¾” input → 1″ output (max 3000 N·m output).
Q3: Why include a lever arm?
It stabilizes reaction force so the multiplier housing doesn’t rotate, improving safety and control during high-torque work.
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