Mask/eye protection + other product recommendations for drilling?

[u/SettingIntentions]

Is any N95 fine to protect against the Silica that comes from drilling into limestone, or do I need to be particular with what I buy? I was looking at some half-face 3m respirators and then thinking to get some N95 particulate filters, plus just some tight goggles.

Also, any drill + drill bit recommendations? I am intending to use Petzl Pulse, the removable 12mm bolts.

I have many 3m vflex sitting around from last fire season (I live in Southeast Asia), would that be enough? I rather get 3m for drilling... For extra safety.

[u/NoSandwich5134]

Just asking, is there a particular reason you will use the Pulse bolts instead of wedge or sleeve bolts?

[u/SettingIntentions → u/NoSandwich5134]

Just thinking long term what’s best. With the pulse bolts there’s nothing left behind but the holes remain for future glue ins if we or someone else wants to put those in. Local culture prefers glue-ins but I definitely don’t have the skill or practice with the glue so I think Petzl pulse is best.

[u/CleverDuck → u/SettingIntentions]

You can just do concrete screws.

Pulses are extremely low tolerance, whereas screws (especially the galvanized ones if it's just temporary shit) are very tolerant and stupid strong. They also cost significantly less per item so it's nbd if you accidentally drop one or two down a 300ft pit (not that I have any experience doing that ..........................)

I replace (1-for-1) screws for glue-ins, which can even be done without expanding the hole if you plan the hardware right (like if it's a 10mm screw and an 8mm glue-in bolt)

[u/SettingIntentions → u/CleverDuck]

You mean like Petzl Couer? I already ordered 4 pulses so I guess I'll start with this haha. But I'm not opposed to switching in the future to other things..

[u/CleverDuck → u/SettingIntentions]

No. Couer bolts are mechanical wedge bolts.

I mean concrete screws:
https://www.lowes.com/pd/Simpson-Strong-Tie-Titen-HD-174-3-8-in-x-3-in-Heavy-Duty-Screw-Anchor-30-Qty/ (Note that price is for Qty. 30, not just one)

Which require an impact driver to set and they literally cut threads in the rock. The hardware can be removed and same holes can be reused (assuming you're using the exact same model of hardware).

[u/SettingIntentions → u/CleverDuck]

For some reason the link doesn't show anything - can you try send w/another version of the link?

Edit: it says 404 not found

[u/CleverDuck → u/SettingIntentions]

Dang, sorry about that. Here: https://www.homedepot.com/p/Simpson-Strong-Tie-Titen-HD-3-8-in-x-3-in-Zinc-Plated-Heavy-Duty-Screw-Anchor-50-Pack-THD37300H/205225113

Obviously you'll have to find what's available to you locally. Read each manufacturer's specs about how to size the drill bit and hangers-- different manufacturers measure the diameter differently (for god knows what reason). In my experience, screws sold under US measurements (inches) measure the diameter of the shaft, where as screws sold under metric units measure the diameter at the threads. The drill bit is sized to the screw's shaft, not the threads, because the threads are literally cutting into the rock. If the drill bit is matched to the thread diameter, the hole would be too big. I have a ramble about this in the Bolting Bible somewhere if you need more detail (currently at work and multitasking).