Designed over 25 years ago • Still made by the inventor

I needed a better way to repair window screens. So I invented one.

As a window and door service technician, I couldn't find a reliable tool for installing screen plunger pins on site. I designed my own jig—and decades later, I now machine it myself.

The original inventor's design. Precision CNC-machined in Delrin.

$175 · Free U.S. shipping

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Actual inventor-made window screen plunger jig, showing Delrin body and black handle

The inventor's story

From a problem on the job to a tool of my own

More than 25 years ago, while working for a major window and door company, I needed a way to repair and replace window screen plunger pins at customers' homes. I searched for a suitable tool and couldn't find one.

So I designed a jig to position and guide the drill accurately. At first, I hired a local machine shop to manufacture it and supplied finished tools to a hardware distributor.

Years later, I discovered that the design was still being sold. Today I manufacture my version in my own shop, with the care and attention that comes from knowing exactly why the tool was invented.

Multiple individually boxed screen plunger jigs prepared for shipment

What makes this jig different

A complete tool for precise screen repairs

CNC-machined Delrin body

Acetal engineering plastic offers dimensional stability, low friction, and wear resistance.

Steel drill bushing

A press-fitted guide bushing helps align the drill for repeatable work.

Step drill and stop collar

The included step drill helps form the required aligned holes; the collar controls depth.

Comfortable handle

A substantial handle helps hold and position the jig.

Adjustable clamp

Designed for window screen frames from 1/4 inch to 7/16 inch.

Ready-to-use kit

Includes the jig, handle, step drill, stop collar, printed instructions, and box.

Jig mounted on a screen frame with included step drill

Front view of jig and screen frame showing clamping arrangement

Close-up of drilling through the steel guide bushing

Made in my shop

Watch the machining process

These are actual workshop videos from the manufacture of my tool. The video clips can be replaced or edited as we refine the site.

Get the original inventor's design

Window Screen Plunger Latch Installation Jig

Delrin body · Steel drill bushing · Step drill with stop collar · Handle · Instructions

$175

Free U.S. shipping as advertised on your Amazon listing

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