1、Clean Cut: Our bimetal hole saw drill bit cuts very smoothly and can achieve a very clean cut all around, making the cut more beautiful. 2、High Speed Steel: This bi metal hole saw drill is made of high speed steel, high hardness, very wear and heat resistant, these are very good advantages, with this drill can make the operation more soft. 3、Easy Chip Removal: Our bimetal hole saw drill has a unique design hole, which allows you to easily discharge chips and improve the efficiency of drilling. 4、Rust Proof and Durable: This drill bit has high accuracy and also adopts a special heating process to extend the service life, prevent rust and become more durable. 5、Application: Large hole cutting, teeth are perfect for cutting holes in soft metal, wood, PVC board, plastic and plasterboard, not recommended for hardwood, hard metal and stone.