JHK serial hexagon cassette hydraulic torque wrench 1. large torque/ weight ratio, small nose-pard, light- weight and slim-shaping design 2. the double(two-sided) action with high speed and large torque range 3. While connecting or exchanging, it doesn't need aextral special tools 4. 360°×360°survivel hose connection. No restriction in the limited spacing in actual application. 5. Most precise cassettle hydraulic wrench, accurancy reaching plus-minus 3% repeat. Durable and reliable. 6. Anti-reservre pawls for preventing the returningof ratchets to keep a required torque. 7. Extensible metric, imperial hex plug-ins and sleeves 8. Raw meterial used: AL Ti Alloy. A high strength and ultra-light aircraftmaterial. 9. The working heads and plus-ins are quite safe, can prevent demaged, soaking and dirty environment. 10. It can be customized according to your special requirements.