Punte trapano seghetto in lega dura per marmo vetro ceramica parete legno acciaio molte misure
This can extend the life of the drill. Hard Alloy Saw Drill Bit for Marble Glass Ceramic Tile Concrete Wall Many Model. Self tap screw wood drill 10-25mm. Big head wood drill 15-100mm. Twist wood drill diam 1-8.5mm.