A stairway, ladder, ramp or other safe means of egress must be located in trench excavations that are 4 feet (1.22 m) or more in depth so as to require no more than 25 feet (7.62 m) of lateral travel for employees. Designed to prevent slipping.
Pitching wedges have a loft of between 46 and 48 degrees. Approach wedges have lofts between 50 and 52 degrees. The extra loft on the approach wedge helps it to get up in the air, but decreases the distance hit.
Manufacturers offer five basic wedges, and loft is the major difference between them: The pitching wedge has 45-48 degrees of loft. The gap wedge has 50-54 degrees of loft. The sand wedge, used primarily for getting out of bunkers, has 56 degrees of loft. And the loft wedge has 58-60 degrees of loft.The lob wedge has about 64 degrees of loft. Gene Sarazen invented the sand wedge over 70 years ago. Bounce angle is another difference between wedges.nd the loft wedge has 58-60 degrees of loft. The lob wedge has about 64 degrees of loft. Gene Sarazen invented the sand wedge over 70 years ago. Bounce angle is another difference between wedges.