4-PIECE ROUTER BIT SET

To start drilling, place the drill bit at a 45° angle. Once the hole has been started, return the drill bit to 90°. Continue drilling but move in a circular motion. Fast-cutting diamond drill bit, fewer chips. Recommended RPM 11000. Suitable for drilling porcelain, marble, and granite. Cutters included in the kit: 25x74, 40x74, 60x74, 70x74mm