Check the listing for details. Concrete Core Drill Bit, Shili Tools SL-P0176, 3.5 Inch / 90mm 2" Deep, NEW. Condition: New. Listed at 24.99 USD. This concrete core drill bit by Shili Tools is a high-quality and reliable option for your drilling needs. With a 3.5 inch diameter and a 2 inch depth, it is perfect for a variety of drilling applications. Made in China, this core drill bit is designed for use with core drills and rigs, and is an excellent choice for business and industrial use. Whether you're a professional or a DIY enthusiast, this concrete core drill bit is sure to meet your needs. Its durable construction ensures long-lasting performance, and its precise drilling capabilities allow for accurate and efficient results. So why wait? Order your Shili Tools SL-P0176 concrete core drill bit today and experience the difference for yourself! Brand new