The HERCULES™ professional 20V Lithium-Ion Brushless Cordless 2-Stage Vacuum Pump is engineered to draw vacuum down to 23 microns. The lightweight construction, along with the HERCULES™ lithium-ion battery system, makes this pump ideal for jobs requiring maximum portability. Pair up with the HERCULES™ 5 Ah battery pack to deliver more work per charge and more work over the life of the pack.