Description
The WrenchSizer tells you which wrench or socket fits a nut before you start digging through the toolbox. This is the stainless steel one, the version you carry. Imperial on one side, 5/32" to 1-1/2". Metric on the other, 4 mm to 32 mm. Credit-card size, so it rides in your wallet.
It's the WrenchSizer shown in my book, The Bolting Field Technician's Pocket Reference. The book prints the scale on the page so you can use it right there. This one goes in your pocket and doesn't wear out.
Two ways to use it
Loose nut: nest it in the "V" and read the size where the farthest corners land.
Nut still on the bolt: set the corner of the nut at the "0" line on the edge scale and read where the flat ends. You only need one flat, so it works in tight spots.
If it lands between two lines, use the larger size. Between 11/16" and 3/4"? Grab the 3/4".
There's a line for every 1/16" and every millimeter, so it doesn't matter which standard the nut was made to. It answers one question: what wrench fits?
Details
- Imperial 5/32" to 1-1/2", metric 4 mm to 32 mm
- Stainless steel, laser engraved, so the marks won't rub off
- 3.37" x 2.125", credit-card size
- In the package: the WrenchSizer, a vinyl protective sleeve and an instruction card
- Made in the USA, U.S. Patent 10,288,400
For technicians, DIYers and shophands working on cars, lawnmowers, engines and bicycles in the garage, the shop or the driveway.
Full size list, specs and FAQ are on the Stainless WrenchSizer page. Want the whole kit? The SAE Pocket Cards include this WrenchSizer plus five more tools.