Makita Nemesis 2 SDS Plus 4 Cutter 14mm x 315mm Drill Bit vendor_CHEMTRONICS Fan Capacity: 110 m3 h (65 HAZ450N 16X18 Fan Capacity: 110 m3 h (65 cfm) Flow Rate (With Filter): 85 m3 h (50 cfm) Static Pressure (suction force): 1250 Pa (5" WC) HEPA Efficiency: 99 Calibrating pressure can be a time consuming task but 729 makes it easier than ever with an internal electric pump that provides automatic pressure generation and regulation in an in an easy to use The NEMESIS II SDS Plus Bits are 20% faster at drilling in concrete compared to the previous range and it has 4 Cutter Geometry which is ideal for fastening applications with a true round hole 20% Faster drilling in concrete Compared to previous range