"Why would anyone want a hatchet that is 9.75" (assuming you got the large version) end to end and has a screwd on head? I think the designer just wanted to say 6AL-4V, Titanium and created a project around it."
"Consider using your mouth and making a sound... for example, practice saying "on your left." Or use your feet to scrape the pavement to make some noise. If these techniques fail, you may also consider not caring or staying home."
"You can just grow one (or more) in time with genetic code modifications. Probably wont live to see it, but healthy human mods will be a thing im sure."
"I get that. But how much of the fine dust is pulled down by the vacuum when its open sided like that? You'd still get a significant amount of fine dust being flung out the top side of the bit where suction is weak."
"I have yet to see anyone cut outlet boxes using oscillating blades. It's always Rotozip, and that thing is messy, and none of these options mesh with that device. The concern is respirable silica dust, not gypsum dust (although it has minuscule amounts below PEL). I'd say focus on the risk of silica dust and collect it at the source. The open dustpan style is useless since the worry is inhalation. If the debris is large enough to fall into an open port, it's not airborne."