5.5 inch 140 mm Hole Saw Blade for Cornhole Boards Corn Hole Drilling Cutter and Hex Shank Drill Bit Adapter for Cornhole Game Carbon Steel and BI-Metal Heavy Duty Steel- Red

5.5inch Hole Saw - Heavy Duty Steel Design - Great for Making Cornhole Boards ? Specification - Materials: Bi-Metal & HSS - Diameter: 5.5inch (140 mm) - Color: Red - Weight: about 1.94 lb (880 g) ? Package Included -1pcs x Hole Saw -1pcs x Handle -3pcs x Pilot Driil Bit -1pcs x Small L Wrench ? Noted 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.