Rock Carbide Tip Dewalt Sds Plus Bits, Hammer, 5/8-Inch (Dw5446). Product Details Product Description SDS Plus 2 Cutter Drill Bits have a strong tapered core to help resist flute breaks, especially when drilling deep holes. For optimal drilling speeds, the two-stage flute design features a variable helix pattern that quickly moves debris away from the contact zone. Plus, the two sharp, carbide-cutting edges deliver clean, round holes for secure anchor installation. If you have our bits, we have your back. From the Manufacturer DEWALT DW5446 5/8-Inch x 6-Inch x 8-Inch ROCK CARBIDE SDS Plus Hammer Bit Strong core: SDS max bits have tapered core for bit strength and maximum durability, especially when drilling deep holes Aggressive material removal: Two stage flute design with variable helix pattern of DEWALT SDS hammer drill bits allows for efficient debris removal Clean, round holes: Two sharp cutting edges for true holes Wear mark indicator: For accurate diameter of holes 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.