The Alpen Masonry Drill Bit Long Life 10 X 300Mm Is A High-Quality, Durable Drill Bit Designed For Drilling Into Masonry, Concrete, Brick, And Stone. It Features A Carbide-Tipped Cutting Edge For Extended Lifespan And Enhanced Performance. The 10Mm Diameter And 300Mm Length Make It Ideal For Deep Drilling Applications. With Precision-Ground Flutes, It Ensures Efficient Dust Removal, Reducing Friction And Heat Buildup For Smoother Drilling. Suitable For Use With Standard Rotary And Impact Drills.