For Grinding And Polishing On The Surface And Side Face, Use The Mixiflor 40 Product Details MOST COMMON SHANK SIZE: The 1/4 shank makes these abrasive wheels suitable to be used as sanding wheels for electric drills, cordless drills, die grinders. METALWORKING APPLICATIONS: The mounted flap sanding wheels are commonly used in metalworking as a grinding or deburring wheel to clean up welds and cuts in iron, stainless steel and metal alloys. Also used for removing layers of rust and paint on flat metal surfaces WOODWORKING APPLICATIONS: The stripping of old layers of paint when during resurfacing projects or sanding and finishing contoured wood surfaces. PREMIUM MATERIALS: High quality aluminum oxide coated abrasive cloth provides a solid and durable grinding power combined with high efficiency and long life to give you that premium performance that you need and expect from your tools. VARIETY OF WHEEL SIZES: Our 40 pack set includes 4 different sizes, 16, 20, 25, 30mm widths. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.