Applicable Part Number: EA899AR-2B, -4, RS-2A, (EA899AR-6B, RS-4A * Attached to hose and hose connection handle, but not to extension pipe end.) (EA899AR-3A * Attached to hose but not to extension pipe.)
You can work with both hands while breathing on the wall with suction.
Can be used up to drill diameter of 13 mm or less.