1/4'' Premium Intumescent Router Cutter enables accurate and clean groove cutting for seamless integration of intumescent strips into doors, frames and other fire-related applications. It has a durable construction that allows for prolonged use when cutting grooves, ensuring long- lasting performance. It is designed with specialized geometry for optimal chip removal and precise groove formation. Suitable for cutting hard and soft wood, plywood, construction timber , laminated chipboard, veneered wood and fibre material MDF.