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...
1/4" X 1-1/4" Dynamic Cone Penetrometer Spiral Pin. Note: This product typically ships within a timeframe of two to four weeks from the date of order placement.