Rannb Hole Saw 195mm7_7 Cutting Dia for Drilling Wood Plastic and Fiberboard

Dimension Cutting Dia: 195mm/7.7" Total Length : 96mm / 3.77" Shank Diameter : 10mm / 0.39" Package Content 1 x Hole Saw + 1pcs x Pilot Drill 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. ?5. Please make adequate personal protection well before using the product. ? Our Guarantee? 1. This item is fulfilled by Amazon, which provides fast delivery. 2. If the item you receive has any problem, please don't worry. Refund and replacement are guaranteed within 30 days from the date of receipt of shipment. ? Welcome to Contact Us ? Your satisfication is our first priority. Rannb aims to provide our customers a happy shopping experience and completed After Sale Service. If you have any question to product, please feel free to contact us.