Screw Checker, Large Metric, PEC

- 8 mm to 14 mm thread sizes
- Quickly identify ISO metric threads
- Coarse, medium, and fine threads
- Made in USA
Screw checkers provide a quick way to measure standard threads. They provide all the information you need for screws; diameter, length, threads per inch, hole size and even tap drill sizes.
Chris' TipsThese things are quicker and more accurate than using a pitch gage and caliper to measure threads. Simply try the threaded part in the holes until you find the proper one. No guessing or interpretation.

Boring Head Set, R8, Indexable with 4 Boring Bars
