There aren't many options for a manual insulated stapler. Performance will depend on the hardness of the wood you are tacking to. I bought this because it can use 3 different sizes of clamps. I used large clips the size of Romex wire to secure the trailer lighting harness to the underside of the flatbed trailer. I hammered the staples into 3/4" plywood, which is a hard wood. In the softer parts of the plywood the staple went in just fine, but in the hard parts they didn't fully go in or bend. Jams. All in all did he did his job this is the only construction stapler that can handle 3 different insulated staples one for low voltage one for coax and one for romex wires for the price it does the job.