This RemGrit drill bit has a 2 1/4" diameter and is made of tungsten carbide, making it a durable and effective tool for cutting. The OGC36BL model is designed for use with drills and is suitable for a variety of applications. Made in China, this drill bit is 57 mm wide and comes in a package quantity of 1. It is perfect for those looking for a reliable and efficient drill bit for their power tools.