LAIWEI hole saw 43mm The LAIWEI hole saw is a high-quality construction grade tool that drills perfect diameter holes regardless of the project. Frustrated with other cheap hole saw products that break after just one use, we have designed a unique product that is built to last. These bits are very suitable for a variety of projects such as conical hole panels, metal plumbing, ceiling lighting and speakers. laiwei's goal is to create the best products that encourage consumers to live a more convenient and safer life. We have a dedicated product monitoring team that focuses on all the details you care about, developing products that are well made, easy to carry and sophisticated. Robust construction: All hole saws are made from two metals: high quality M42 carbon steel and high speed steel (HSS), which are resistant to oil, rust, heat and wear. Cuts are fast, clean, robust and reusable. HSS round hole saw head Sharp teeth, durable, fall-proof and stable. Ideal for drilling holes in wood, PVC board, plastic, plasterboard and metal pipes. Drill and hole saw remain stable during use to avoid excessive wobble breaking the drill bit. 6.Wear protective glasses and gloves when using the hole saw kit. Package includes:- 1 bimetallic hole saw - 1 arbor - 1 drill bit - 1 hexagonal spanner. Note: For safety reasons, wear goggles and gloves when using the pipe hole saw. What other services can LAIWEI provide? 7x24-hour customer service.