Single Function Core Drill E&S <ES> for Composite Materials

[Features]
·With a 2-piece set of blades leading the inner blade, it is possible to drill holes in composite materials such as metal-covered siding materials, stainless steel-covered wood, and "metal plate + insulation + plywood" in one shot.
·When drilling wood-based materials, chips are easily discharged, and it is possible to cut nails and cut thin iron plates in layers.