Rannb Hole Saw BI Metal Hole Drilling Cutter 190mm75 Cutting Dia

Package Content: 1 x Hole Saw + 1 x Heavy Duty Arbor Dimension: Cutting Dia:190mm/7.5" Shank Diameter : 11mm/7/16” Heavy Duty Drill Bit Length:117mm/4.6" 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. Keep the drill be stable when drilling, otherwise the centre bit may get snapped due to excessive shaking. 3. Start drilling with a slow drill rotary speed, or the centre bit may be shattered on first use. About Rannb 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!