Makita Rotary Hammer Drill Bit E-14548 Enhanced Drilling Speed: Engineered for high efficiency, this drill bit boosts drilling speed by 25% when working with iron rods, making it an essential tool for demanding tasks. Improved Concrete Performance: It offers a 10% enhancement in performance for concrete drilling, allowing for faster and more effective penetration into tough materials. Four-Edge Carbide Design: Crafted from resilient carbide, the NEMESIS II drill bit features four cutting edges that optimize drilling efficiency and extend the tool's lifespan. Ideal Dimensions: With a diameter of 12.0 mm and an overall length of 215 mm (working length of 150 mm), this drill bit is designed to be versatile for various applications. SDS-PLUS Compatibility: The SDS-PLUS holder design enables fast and secure attachment to hammer drills, making operation smooth and ensuring stability during use. Quick Material Removal: Featuring an innovative "Multi-Value-Flute" helix shape, this drill bit efficiently clears away debris, minimizing downtime and boosting productivity. Perfect for Professionals: The NEMESIS II drill bit is tailored for construction professionals and contractors, delivering reliable and exceptional performance even in tough drilling environments. Diameter / 12.0 mm Overall Length / 215 mm Working Length / 150 mm