TOP Kogyo Hex Shank Concrete Drill Bit 4.0mm ECD-4.0

• Ideal for drilling mortar, blocks, plasterboard, brick, etc. • The cutting edge has a proprietary special tip brazed on, maintaining excellent cutting performance • Rotation only [Caution] • Always wear protective glasses while working • Avoid wearing gloves while working. They may get caught • Cannot be used to drill heat-treated steel plates • Take care, as applying too much impact can damage the cutting edge • When machining small workpieces, secure them firmly with locking pliers or similar before working