Louisville Ladder Aluminum Attic Ladder Marking Tools the cross bore should be

the cross bore should be 2-1/8-inches in diameter and the edge bore should be 1-inch in diameter

Compatible with USB port or USB adapter

Cross arm height is adjustable

Designed for hand cutting applications

self polishing acrylic formula that is non yellowing

Louisville Ladder Aluminum Attic Ladder Marking Tools the cross bore should beSERIES ENERGY EFFICIENT Duty Rating: IAA Load: 375 This Louisville Everest Series aluminum attic ladder has a working load capability of 375lbs. This aluminum attic ladder fits ceiling heights of 10 to 12 and has a rough opening of 25. 5 X 63. The Everest AL2540LG R5 features a sturdy, yet lightweight design with pre drilled holes for easier installation. Achieve superior energy efficiency with the R5 insulated door and factory installed weather