DRI-5 Vacuum Drill Bits Grinding Concrete Perform a lifter/load compatibility test:

Perform a lifter/load compatibility test: attach the pads to a representative sample of the load material

reducing the need for extensive subsequent polishing

Refine and polish terrazzo floors to restore clarity

18 mm) Minimum Material Thickness

quartzite and all natural stone

DRI-5 Vacuum Drill Bits Grinding Concrete Perform a lifter/load compatibility test:DRI 5 Vacuum Drill Bits are optimal for cutting bricks and concrete. Dri Vacuum Drill Bits have a large threaded adapter with 1 1 4" 7 threads inch for maximum size vacuum holes. The non slotted tube design ensures suction at the cutting tip of the drill bit, while the reduced core travel length (10") allows for easier start up and low side run out. Specifications Specification Details Diameter inch 1 6 inch Drill connection 1 1 4" 7 Core length inch