High performance multi-material big gullet tungsten carbide hole cutters in sizes from 5/8- to 6 3/4-in. diameter and 2 3/8-in. cutting depth. Cut holes 10 times as fast and three times as large using 1/40th the battery charge in materials including wood, MDF, OSB, plywood, FRP/fiberglass, cement board, chipboard, plastics, concrete backer board. Special tungsten carbide cutters for stainless, stucco and brick veneer over OSB, and production FRP hole cutting. Custom sizes to 10-in. diameter and 6-in. cutting depth.