Tap Terminology
There are many different types of taps, Steven Grantham comments on his blog that there are 38 pages of them in his catalogue. Here’s a few reasons why. Threads There are many different types of thread, metric fine, metric coarse,
Two taps

My latest mini-project was supposed to be a simple sawing and screwcutting exercise of some aluminimum rods. It proved to be a little more involved than I realised when I found that the thread was 2BA. I purchased a suitable
Thread experts?

A few years back, I went into Clerkenwell Screws, passed the man behind the counter a bolt from a second hand table and asked if he had any nuts for it. Almost immediately he came back with the comment, “oh
Tapping in Soho?

I needed a 4.5mm HSS drill bit to tap an M5 hole in my latest small project. Normally I’d order these online but as it was a nice day I thought I’d see if the local hardware store by the