This tool can be purchased with a vacuum attachment suitable for lead abatement
Model: NS-4500 Electric Needle Scaler w/o vacuum 875.00
Also available for lead abatement is the HEPA Backpack Vacuum
30 minutes full on trigger time and 30 minutes rest. This is just a guideline. If your ambient temperature is +20 degrees you'll rest before the tool needs to. Pay attention to the warmth of the tool. That's the same for any electric tool.