Features: Includes 7 commonly used Metal drill bits sizes:4,5,6,8,10 mm High-temperature brazing prevents the carbide-cutting edge from breaking out Hardened and forged steel for a longer lifespan Chrome finish surface to prevent rusting and longer life span Ideal for drilling holes in brick, block, concrete, and masonry ABS case as s a tough job site case for secure storage, easy access, organizing, and Portable Specifications: Model: RH-5587 Included Sizes: 4-5-6- 8-10 mm Material: steel Standard: DIN 8039 Tip Material: Tungsten Carbide -TG8 Point Angle: 130 Degree Supplied in: Ronix Design ABS case