*What You Will Get --- 1 x 10" hole saw, 1 x 7/16" hex shank arbor, 3 x 1/4" Center bits, 1 x 5/32" Allen wrench. Tips: Keep the drill bit in contact with the cutting surface straight at a low speed. Take some time for the saw to cut, so you can get a smooth and clean round cut. | *Excellent Workmanship --- The hole saw is made of M42 high-speed steel and bi-metal, with higher hardness (≥65HRC), higher toughness, higher cutting strength, and stronger wear resistance. Also, Built rust-proof for repeat use. It’s cutting depth of 1.2-inch. | *Designed for Smoothly --- The high-quality bi-metal blade and variable pitch sharp HSS teeth combine with Non-binding clean edge design ensures smooth and clean cutting of the hole saw blade. Meanwhile, Small vibration ensures the operation is more stable, and the cutting holes can be quickly balanced. | *Extensive Applications --- Hole saw can cut a hole which is 10-inch diameter in wood, plywood, plastic, drywall, soft plaster, cornhole boards, acrylic-board, thin metals (within 1/4 inch), and etc. In addition to cutting holes for canned lights or recessed lights, punching saws are also suitable for home projects on air ducts, speakers, ceiling lamps, etc. | *Worry-Free Warranty --- Seimneire provides a 100% money-back 90-day guarantee and 24hrs customer service. If you are not satisfied or have any questions, please feel free to contact us to get a satisfied solution