With the Bahco 3830-40-VIP Sandflex bi-metal holesaw, you cut clean and accurate 40 mm holes through wood, plastic, non-ferrous metals, and ferrous steel including stainless steel. The durable bi-metal construction and variable pitch teeth reduce vibration, providing smooth chip clearance and steady control. Featuring a maximum cutting depth of 38 mm, this female-threaded holesaw is ideal for installing pipes, conduit, and cable pass-throughs. Practical knockout slots in the body allow you to quickly pop out cut cores, keeping your workflow efficient on every job.