The JackJaw® 534 (1-3/4" to 2-1/4") is used primarily with the Gas Powered Core Sampling Kit. The sturdy lever arm gives you a 28 to 1 mechanical advantage. A 100 lb. down force on the handle...
The sturdy lever arm gives you a 28 to 1 mechanical advantage. A 100 lb. down force on the handle generates a 2,800 lb. upward force and a 5,600 lb. gripping force on the post. The mechanical...