3-15/16 Inch Hole Saw With Arbor Mandrel,Hss Bi-Metal Heavy Duty Steel, 100Mm Product Features Hole Saw made of top HSS Bi-Metal for Heavy Dusty capability improved durability with Rust-proof. design for increased durability and outstanding cutting performance. with higher hardness , higher toughness, higher cutting strength and stronger wear resistance. It is made of heat treated carbon steel alloy. Heavy Duty, Durable and Rust-proof. Built tough for repeat use and handy for working on cornhole boards and plastic.Hole saws can cut 2.5 inch diameter holes in wood, plywood, plastic, drywall, soft plaster, cornhole boards and thin metals. In addition to punching cans or recessed lights, punching saws are also suitable for home projects on air ducts, speakers, ceiling lamps, etc. Upgraded design with ultra sharp serrations,Increased wall thickness of hole saw improves durability and minimizes tooth loss,Drilling with sharper Positive Rake Tooth cuts material faster than other brand.more durable with longer life than other brand hole saws. High-quality bi-metal band and the best cutting performance of HSS teeth combines with Non-binding clean edge design?With the non-binding clean edge design,ensures smooth and clean cutting of the hole saw blade.The spring on the drill would automatically pushes the disc out of the saw immediately after completing the hole. VLSYJL is committed to providing consumers with 100% satisfaction. Our goal is always to create perfect products for consumers Please contact to us on your order page if having any issues with our Hole Saws . In order to give you a better shopping experience, we are more than willing to help you solve all questions about the product. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!