Accurate angle measurement

[mklotz]

Also thanks for the link to the Oil based pens from Sharpie...makes sense they would jump on the band wagon. Have you tried them? Added them to my want list. Agreed about a choice of white but find Yellow contrasts on a lot of backgrounds too...the key is contrast I believe.

Yes, I bought the set of Sharpies pictured in the URL.

I have a bunch of those cheapy free screwdrivers from HF. I throw them in all my toolboxes and bags. Don't care if I wreck them through misuse and sometimes even drive screws with them. The problem is the slot and Phillips have identical handles. I don't like wasting time sorting through to find the style I want. I took the white Sharpie and drew straight lines on the slot drivers and crosses on the Phillips handles. The marks are on each side and on the top so, no matter how they're lying (or even stuck in tool bag side pockets) at least one of the marks is visible. Saves me a lot of frustration.

I've always been curious why Sharpie never made a conventional white marker. Before the paint pens I used the metallics, gold, silver and bronze, on dark materials. That works but white is more visible.

Yes, it's all about contrast. Yellow is arguably better than white. Millions of years of evolution have made the sensitivity of our retinas peak exactly at the peak output frequency of the sun and that's in the yellow part of the spectrum.