Review on 🔧 PRIME-LINE P 7505 Window and Door Screen Installation Tool – Spline Roller with Wood Handle and Steel Wheels – Durable, Easy to Use, and Essential by Jyothish Pillai

I used this to replace my torn aluminum screen with the excellent youtube video by "seejanedrill". Instead of having to look up what "concave" and "convex" mean, use an edge of the (convex) end to slide the screen into the channel. Use the double-edged (concave) end that looks like there's a small groove between the two edges to push the spline into the channel. Be sure to use the correct diameter wedges and apply plenty of pressure to keep the wedges in good condition. It's really fast once you get the hang of it. A few more tips: Make sure the screen is snug and secure when inserting it into the channel. When you reach the slotted corner, use a flathead screwdriver carefully as the slot will not reach the corner.