Hole Saw 150 mm drill bit with centering drill for holes, bimetal 15 cm The hole opener is designed for drilling holes Made of carbon steel and bimetal durable and will not rust Specially selected tooth angle for easy and quick sawing Suitable for the production of holes in steel, cast iron, aluminum, non-ferrous metals, plastic, acrylic glass and woodNote: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!