Bi-Metal Hole Saw Kit, Hychika 17 Pcs High Speed Steel 3/4", And Plastic Plate Product Details ??BI-METAL HIGH QUALITY?The HYCHIKA saw blades are made of bimetallic material, the cutting part is made of high hardness (69~81HRC), high strength hard alloy steel, 2 mm thick. The product has the advantages of wear resistance, better toughness and long usage life. ??HIGH PRECISION FAST CUTTING?The tooth of the saws has been optimized and improved many times, higher cutting efficiency, cleaner and smoother cutting, higher precision; the chip removal groove added on the side of the hole saw can discharge the chip rapidly. ??11 HOLE SAWS AND 6 ACCESSORIES? Including 11pcs size saw blades: 19mm, 22mm, 25mm, 29mm, 35mm, 38mm, 44mm, 51mm, 57mm, 60mm, 68mm, max cutting depth of 40mm, 2pcs mandrels, 3pcs drill bits for easy replacement, 1pc hex key. ??WIDE APPLICATIONS CONVENIENT STORAGE? The HYCHIKA hole saws are durable and reliable to use on workpieces, suitable for hole cutting on soft metal, wood, PVC board, plastic, gypsum board; comes with a sturdy and small storage box, which is very convenient to store and easy to carry. ??WHAT YOU GET?11 x HYCHIKA Bi-Metal Hole Saw Blades, 2 x Mandrels, 3 x Drill Bits, 1 x Hex Key, 1 x Storage Box, 1 x User Manual ??VARIOUS CHOICES?If you only need to cut cork boards, thin PVC boards, drywall and plywood, and do not need to cut hardwood, metal, we are proud to recommend another product of HYCHIKA 19 Pcs Hole Saw Kit (B07Y1G2Y7K) 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.