Screw Thread Gauge | Metric and SAE | Recommends Drill Bit & Tap Size (BCP675)

Perfect gauge especially when you have a box full of different size screws to sort out

Handy tool for getting correct screw sizes

I had doubts if the M2.5x45 chinese knock off taps were actually that thread.They aren'tThis item whilst a little over produced should be good for pretty much all the small screws currently employed in everything from Glasses to Model Steam Locomotives.It is moulded from a half decent plastic which is it's only negative. It would be too easy to damage the threads if you use a damaged bolt that you wanted to check.It fits in my Tool box and being flat can stand to one side.I didn't expect much but it is better than the price indicates.

Expanded my knowledge on thread size.Well made, holes accurate, very clear markings.Both sides used / usable.

Just what I needed to help identify sizes of bolts, screws, etc. for drill bits. Great value for money. Easy to use.

I had bee looking for something like this for along time other gauges are multipurpose but a bit limited for screws. This is comprehensive