Neiko 11258A 10 Pack Jumbo Zirconia Flap Discs 4-1/2 For Angle Grinder, 80 Grit The Neiko 11258A High Density Premium Zirconia Flap Disc can operate with a maximum speed of 13, 300 RPM. Each 80 grit flap disc in the 10-piece set is outfitted with an arbor size of 7/8-inch. Product Features PREMIUM QUALITY: These angled flap discs, also known as cut off wheels 4 1/2 inch, are constructed with industrial grade premium zirconia abrasive for strength, durability, and extended disc life as it holds up to high temperatures and pressure SURFACE PREPARATION: Each angle grinder sanding disc is made with medium 80 grit zirconia alumina, making this abrasive flap disc ideal for grinding or blending on hard to grind materials like metal, rubber, plastic, fiberglass, and wood. HIGH DENSITY: Jumbo flap discs are made with extra flaps compared to a standard flap disc, allowing for longer life and smoother grinding. The additional grinding material complemented with the fiberglass backing plate also absorbs more vibrations without smearing and helps prevent contaminating the workpiece during usage. ANGLED T29: Beveled Type 29 discs are best used at an angle and are effective for edge shaping, deburring, grinding contours, and radius grinding on steel, sheet metal, welding, machining, heavy duty equipment and industrial maintenance. SPECIFICATIONS: Each disc measures at a 4-1/2-inch diameter with a 7/8-inch arbor size, making it compatible with most angle grinders with a speed of up to 13,300 RPM. Designed for grinding, blending, sanding, and finishing on a wide range of materials. 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!