Long Life Hole Saw Kit For Hard Metal, Anbull Carbide Hole Saws Hole Cutter Set Product Details High Quality: Adopt tungsten carbide material, unique cutting-edge grinding technology, sharp and wear-resistant, not easy to break, drilling high efficiency and fast chip removal, extremely long service life. Fast Cutting Chip Removal: Use high-strength, high-sharp tungsten carbide blades,and anti-vibration gear design, fast and durable. Arc-shaped chip pocket design, conducive to the smooth discharge of iron filings, reducing chip jamming, and conducive to chip holding at the limit cutting depth. Precise Cutting: Stepped pilot drill bit design, precise center positioning, providing fast and precise incision, and with step cutting function, effectively decompose the cutting resistance of the centering drill, reduce the impact force at the moment of drilling through and avoid chipping of the cutting edge; And Pilot Drill Spring Design, control the displacement of the cutting edge, avoid damaging the drill bit by sudden cutting. Scope of Application: Used with power drill, magnetic drills, benchtop drills to quickly and accurately cut stainless steel, sheet metal, cast iron, mild steel, aluminum and FRP less than 5 mm. Note: Prohibit the use of ceramic tile, concrete, walls, stone. This Hole Saw Set Includes : 6 PCS hole cutters with dimensions 7/8 inch, 1-1/8 inch, 1-3/8 inch?1-3/4 inch, 2 inch, 2-1/2inch, 2 pcs pilot drill bits and 1 pc hex key. All are packed in a box, light and easy to carry. 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.