New round opening allows for pulling with a slip hook. New casting process makes for a tighter grain structure, resulting in more strength.

 The original straight-cut tooth design pattern is machined for superior gripping and pulling power. 

Sill Hook end is 21/2" wide.

Gripping Surface: 2-5/8" wide , 1" deep (25 mm) Overall Length: 7-1/2" 
Weight: 4-3/4 lbs 
Capacity: 3 tons  
Heat Treated Steel.