- Specifications: This 11-piece SDS hammer drill bit set includes 9 hammer drill bits and 2 chisels. The drill bits are sized approximately 5x110mm, 6x110mm, 8x160mm, 10x160mm, 12x160mm, 14x210mm, 16x210mm, 18x260mm, and 22x350mm. The chisels consist of a 1 Point Chisel (14x250mm) and a Flat Chisel (14x250x20mm). - Premium Quality: Crafted for durability, each tool features a YG8 carbide head and a 45 carbon steel body. This construction ensures strong impact resistance, high hardness, and enhanced toughness, providing longer tool life and superior performance in masonry. - Functionality: Designed specifically for use with percussion drills, these SDS chisels are suitable for creating grooves in concrete, brick, natural stone, and various masonry types. The robust 40Cr carbon steel material ensures that they can handle demanding tasks with ease. - Enhanced Drilling Efficiency: The electric hammer drill features a cross alloy cutter head design that is both hard and durable. This design facilitates sharp drilling, making the process easier and increasing overall work efficiency. Additionally, the 4-slot design prevents bit slippage, ensuring safety and stability during use. - Practical Applications: Ideal for construction and renovation projects, this set is perfect for installing fixtures, creating drainage grooves, or performing extensive demolition work. Whether you're a professional contractor or a DIY enthusiast, this versatile set meets all your masonry drilling and chiseling needs.