If you are looking for a thread checker that can allow you to quickly identify the size of nuts and bolts,

If you are looking for a thread checker that can allow you to do size check on very tricky and narrow area,

If you are looking for a thread checker to be gifted to your family or friends who love mechanical work or home project,

Giwaelro nut and bolt thread checker that comes with 54 pcs male and female gauges——mostly frequent used in daily mechanical work or home project, is a wonderful option for you.

---Durable and Accurate: Giwaelro thread checker red and blue is made from aluminum alloy with accurate threading. In addition, this thread gauge sae and metric has 27 inch sizes and 27 metric sizes, and each piece has a male and female side for bolts and nuts, which will be a good helper for you, especially when you have to dealing with these two different standards in your fastener projects.

---Detachable Feature: All thread gauge are individually well housed in a decent eva foam. The biggest highlight of giwaelro screw size and bolt size thread checker is that you can feel free to take out any wanted pieces to do a fast identification of the size of nut and bolts. No need to grab a huge, bulky and inseparable thread checker on cable or thread checker on board/Metal Plate to spin the whole body for check any more, specially when you have to do size check on a piece of equipment or on some very tricky and narrow area. Greatly improve the work efficiency.

---Two colors coded for imperial and metric: To better help distinguish metric and inch sizes, we make inch and metric pieces in different colors respectively ( blue for SAE, red for metric).

27 PCS Metric Size:

M2.5-0.45 Coarse, M3-0.5 Coarse, M4-0.7 Coarse, M5-0.8 Coarse, M6-0.5 Fine, M6-1.0 Coarse, M7-1.0 Coarse, M7-1.25 Fine, M8-1.0 Fine, M8-1.25 Coarse, M10-1.0 Fine, M10-1.25 Fine, M10-1.5 Coarse, M12-1.25 Fine, M12-1.5 Fine, M12-1.75 Coarse, M14-1.5 Fine, M14-2.0 Coarse, M16-1.5 Fine, M16-2.0 Coarse, M18-1.5 Fine, M18-2.5 Coarse, M20-1.5 Fine, M20-2.5 Coarse, M24-2.0 Fine, M24-3.0 Coarse;

27 PCS Inch Size:

4-40 Coarse, 6-40 Fine, 6-32 Coarse, 8-32 Coarse, 8-36 Fine, 10-24 Coarse, 10-32 Fine, 3/16-24Coarse, 12-24 Coarse, 1/4-20 Coarse, 1/4-28 Fine, 5/16-18 Coarse, 5/16-24 Fine, 3/8-16 Coarse, 3/8-24 Fine, 7/16-14 Coarse, 7/16-20 Fine, 1/2-13 Coarse, 1/2-20 Fine, 9/16-12 Coarse,9/16-18 Fine, 5/8-11 Coarse, 5/8-18 Fine, 3/4-10 Coarse, 3/4-16 Fine,1-8 Coarse, 1-12 Fine;

Also, we improve the readability of numbers. Unlike other thread checkers which has mottled surface, the surface of our thread gauge has an unexpected and excellent feature in clean and bur-free surface, which makes the sizing number on the gauges very clear to read. You can view the videos of thread checker set we uploaded and posted.

---3 Clears ways to read thread size: The another highlight of this screw and bolt thread gauge is that even in dim environment, you still can clearly and easily read the gauge size in 3 various ways: sizes clearly engraved on gauges themselves/ a beautiful size chart on art paper sticker and sizes screen printed on foam. Each size printed on chart or foam is corresponding to the relative thread gauge. When you just want to handle one checker size at a time. You can visually see the sizes easier, match up and take out the expected sizer.

--Double Size Etched on Gauges: Moreover, we upgraded thread checker 54 with each thread size gauge etched in double sides( front and back side), which avoid the hassle that you have to spin a round to check the etched size on the thread gauges.

What is the difference between Giwaelro thread gauge and the ones from other brands?

Giwaelro values quality very much. Each thread gauge is big, long, bright with digits clearly and beautifully etched and etched in double sides( front and back side). The pictures from others may look similar as the ones of Giwaelro thread gauges, but the actual size and quality is different with each other.