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Professional Thread Checker Quickly Identify Confusing Nut & Bolt & Drill Sizes
Quickly Identify The 30 Disordered Nuts And Bolts And 19 Drill Bit Sizes
Metric and Standard Thread Checker Includes 30 Nut & Bolt & 19 Drill Bit Sizes
The metric and standard thread checker has wide coverage，and identify 15 metric threads (M3*0.5 - M14*2.0), 15 SAE threads (#4-40 Coarse - 1/2-20 Fine), and 19 drill bit sizes (4mm - 14mm, 1/16in - 1/2in). This ensures ideal project matching, no guesswork, higher efficiency and less unnecessary work
Dsspeaks
2025-08-01 12:43:22
Accurate and easy to use. Elimates guesswork. The only problem was with the packaging and shipping. My checker arrived with the smallest nut checker bent over at about a ten degree angle. This doesn’t seem to affect the use but I am concerned that if I try to straighten the threaded rod it might snap.
M. Walling
2025-07-08 14:50:45
Absolutely beautiful quality! Always wanted one of these to have in the garage, and I shouldn’t have waited so long!
Doug K Bonner
2025-05-25 10:11:39
Very good quality and fast service
Ditto Head
2025-05-14 10:28:36
works well and a good price
BILLY WHITE
2025-02-07 10:29:49
THIS IS A GREAT PIECE!
Scott S
2024-12-22 16:16:11
Great for sizing those unknown nuts and bolts that you need to replace
steve ramirez
2024-12-19 11:16:56
Works just great, no more guessing here..!
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