Rannb Hole Saw BI -Metal Hole Drilling Cutter 150mm 5.9 inch Cutting Dia

Package Content: 1 x Hole Saw + Pilot Drill Bit Dimension: Cutting Dia: 150mm/6" Cutting Depth : 25mm /1" Shank Diameter : 10mm / 0.4" Please Note: 1. Hole saw may become overheated and get damaged or even burned up due to fast rotary friction, we suggest customers to use coolant to keep the hole saw cold during usage. 2. Please remove the spring on the pilot bit when you are drilling a hole on the materials with over 10mm thick. 3. Keep the drill be stable when drilling, otherwise the centre bit may get snapped due to excessive shaking. 4. Start drilling with a slow drill rotary speed, or the centre bit may be shattered on first use. About Raanb Your satisfication is our first priority. If you have any question, please feel free to contact us, we will try our best to provide you with 100% customer service satisfaction!