Milwaukee M12 12 Volt Lithium Ion Cordless 3 8 in. Crown Stapler (Tool Only) Safety Knee Pads Valve is of brass construction Valve is of brass construction Automatic filter clean pulses every 30 seconds for continuous operations without stopping to clean filter Powerful 15 Amp motor delivers 140 CFM of airflow for maximum suction Power tool actuation controls the on off operations of the vacuum with a power tool Variable suction controls vacuum's power consumption and amount of suction Telescoping handle for easy transport Universal hose connector provides a robust connection with swivel capability Lightweight and portable weighing in at only 33 A: While it's ideal for a range of materials A: The stapler can fire up to 1500 staples per charge with a compact M12 battery